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I know 60 is not a prime number but has anyone previously spotted the significance of 60 in a grid of prime numbers?
Just one more day left to go.
Some fans of Chinese movement arts chose to use 69 as representation for the yin-yang symbol on their license plates. But some, which are also mathematicians and wanted to have a prime number, selected 659
201: The number is a multiple of 3 and 67 at the same time
202: The number is a multiple of 2 and 101 at the same time
203: The number is a multiple of 7 and 29 at the same time
204: The number is a multiple of 3, 4 and 17 at the same time
205: The number is a multiple of 5 and 41 at the same time
206: The number is a multiple of 2 and 103 at the same time
207: The number is a multiple of 9 and 23 at the same time
208: The number is a multiple of 13 and 16 at the same time
209: The number is a multiple of 11 and 19 at the same time
210: The number is a multiple of 3, 7 and 10 at the same time
211: The difference between 21 times the last digit and the rest of the number is 0 or a multiple of 211
212: The number is a multiple of 4 and 53 at the same time
213: The number is a multiple of 3 and 71 at the same time
214: The number is a multiple of 2 and 107 at the same time
215: The number is a multiple of 5 and 43 at the same time
216: The number is a multiple of 8 and 27 at the same time
217: The number is a multiple of 7 and 31 at the same time
218: The number is a multiple of 2 and 109 at the same time
219: The number is a multiple of 3 and 73 at the same time
220: The number is a multiple of 11 and 20 at the same time
221: The number is a multiple of 13 and 17 at the same time
222: The number is a multiple of 2, 3 and 37 at the same time
223: The sum of 27 times the last digit and the rest of the number is a multiple of 223
224: The number is a multiple of 7 and 32 at the same time
225: The number is a multiple of 9 and 25 at the same time
226: The number is a multiple of 2 and 113 at the same time
227: The difference between 68 times the last digit and the rest of the number is 0 or a multiple of 227
228: The number is a multiple of 3, 4 and 19 at the same time
229: The sum of 23 times the last digit and the rest of the number is a multiple of 229
230: The number is a multiple of 10 and 23 at the same time
231: The number is a multiple of 3, 7 and 11 at the same time
232: The number is a multiple of 8 and 29 at the same time
233: The sum of 70 times the last digit and the rest of the number is a multiple of 233
234: The number is a multiple of 2, 9 and 13 at the same time
235: The number is a multiple of 5 and 47 at the same time
236: The number is a multiple of 4 and 59 at the same time
237: The number is a multiple of 3 and 79 at the same time
238: The number is a multiple of 2, 7 and 17 at the same time
239: The sum of 24 times the last digit and the rest of the number is a multiple of 239
240: The number is a multiple of 3 and 80 at the same time
241: The difference between 24 times the last digit and the rest of the number is 0 or a multiple of 241
242: The number is a multiple of 2 and 121 at the same time
243: The sum of 73 times the last digit and the rest of the number is a multiple of 243
244: The number is a multiple of 4 and 61 at the same time
245: The number is a multiple of 5 and 49 at the same time
246: The number is a multiple of 2, 3 and 41 at the same time
247: The number is a multiple of 13 and 19 at the same time
248: The number is a multiple of 8 and 31 at the same time
249: The number is a multiple of 3 and 83 at the same time
250: The number ends in 000, 250, 500 or 750
251: The difference between 25 times the last digit and the rest of the number is 0 or a multiple of 251
252: The number is a multiple of 4, 7 and 9 at the same time
253: The number is a multiple of 11 and 23 at the same time
254: The number is a multiple of 2 and 127 at the same time
255: The number is a multiple of 3, 5 and 17 at the same time
256: The last 8 digits are a multiple of 256
The 10,000,000s digit is even and the last 7 digits are 0,000,000 or a multiple of 256
The 10,000,000s digit is odd and the last 7 digits are 128 times an odd number
257: The difference between 77 times the last digit and the rest of the number is 0 or a multiple of 257
258: The number is a multiple of 2, 3 and 43 at the same time
259: The number is a multiple of 7 and 37 at the same time
260: The number is a multiple of 13 and 20 at the same time
261: The number is a multiple of 9 and 29 at the same time
262: The number is a multiple of 2 and 131 at the same time
263: The sum of 79 times the last digit and the rest of the number is a multiple of 263
264: The number is a multiple of 3, 8 and 11 at the same time
265: The number is a multiple of 5 and 53 at the same time
266: The number is a multiple of 2, 7 and 19 at the same time
267: The number is a multiple of 3 and 89 at the same time
268: The number is a multiple of 4 and 67 at the same time
269: The sum of 27 times the last digit and the rest of the number is a multiple of 269
270: The number is a multiple of 10 and 27 at the same time
271: The difference between 27 times the last digit and the rest of the number is 0 or a multiple of 271
272: The number is a multiple of 16 and 17 at the same time
273: The number is a multiple of 3, 7 and 13 at the same time
274: The number is a multiple of 2 and 137 at the same time
275: The number is a multiple of 11 and 25 at the same time
276: The number is a multiple of 3, 4 and 23 at the same time
277: The difference between 83 times the last digit and the rest of the number is 0 or a multiple of 277
278: The number is a multiple of 2 and 139 at the same time
279: The number is a multiple of 9 and 31 at the same time
280: The number is a multiple of 7 and 40 at the same time
281: The difference between 28 times the last digit and the rest of the number is 0 or a multiple of 281
282: The number is a multiple of 2, 3 and 47 at the same time
283: The sum of 85 times the last digit and the rest of the number is a multiple of 283
284: The number is a multiple of 4 and 71 at the same time
285: The number is a multiple of 3, 5 and 19 at the same time
286: The number is a multiple of 2, 11 and 13 at the same time
287: The number is a multiple of 7 and 41 at the same time
288: The number is a multiple of 9 and 32 at the same time
289: The sum of 29 times the last digit and the rest of the number is a multiple of 289
290: The number is a multiple of 10 and 29 at the same time
291: The number is a multiple of 3 and 97 at the same time
292: The number is a multiple of 4 and 73 at the same time
293: The sum of 88 times the last digit and the rest of the number is a multiple of 293
294: The number is a multiple of 2, 3 and 49 at the same time
295: The number is a multiple of 5 and 59 at the same time
296: The number is a multiple of 8 and 37 at the same time
297: The number is a multiple of 11 and 27 at the same time
298: The number is a multiple of 2 and 149 at the same time
299: The number is a multiple of 13 and 23 at the same time
300: The number is a multiple of 3 and 100 at the same time
101: The difference between 10 times the last digit and the rest of the number is 0 or a multiple of 101
102: The number is a multiple of 2, 3 and 17 at the same time
103: The sum of 31 times the last digit and the rest of the number is a multiple of 103
104: The number is a multiple of 8 and 13 at the same time
105: The number is a multiple of 3, 5 and 7 at the same time
106: The number is a multiple of 2 and 53 at the same time
107: The difference between 32 times the last digit and the rest of the number is 0 or a multiple of 107
108: The number is a multiple of 4 and 27 at the same time
109: The sum of 11 times the last digit and the rest of the number is a multiple of 109
110: The number is a multiple of 10 and 11 at the same time
111: The number is a multiple of 3 and 37 at the same time
112: The number is a multiple of 7 and 16 at the same time
113: The sum of 34 times the last digit and the rest of the number is a multiple of 113
114: The number is a multiple of 2, 3 and 19 at the same time
115: The number is a multiple of 5 and 23 at the same time
116: The number is a multiple of 4 and 29 at the same time
117: The number is a multiple of 9 and 13 at the same time
118: The number is a multiple of 2 and 59 at the same time
119: The number is a multiple of 7 and 17 at the same time
120: The number is a multiple of 3 and 40 at the same time
121: The difference between 12 times the last digit and the rest of the number is 0 or a multiple of 121
122: The number is a multiple of 2 and 61 at the same time
123: The number is a multiple of 3 and 41 at the same time
124: The number is a multiple of 4 and 31 at the same time
125: The number ends in 000, 125, 250, 375, 500, 625, 750 or 875
126: The number is a multiple of 2, 7 and 9 at the same time
127: The difference between 38 times the last digit and the rest of the number is 0 or a multiple of 127
128: The last 7 digits are a multiple of 128
The 1,000,000s digit is even and the last 6 digits are 000,000 or a multiple of 128
The 1,000,000s digit is odd and the last 6 digits are the result of multiplying 64 by an odd number
129: The number is a multiple of 3 and 43 at the same time
130: The number is a multiple of 10 and 13 at the same time
131: The difference between 13 times the last digit and the rest of the number is 0 or a multiple of 131
132: The number is a multiple of 3, 4 and 11 at the same time
133: The number is a multiple of 7 and 19 at the same time
134: The number is a multiple of 2 and 67 at the same time
135: The number is a multiple of 5 and 27 at the same time
136: The number is a multiple of 8 and 17 at the same time
137: The difference between 41 times the last digit and the rest of the number is 0 or a multiple of 137
138: The number is a multiple of 2, 3 and 23 at the same time
139: The sum of 14 times the last digit and the rest of the number is a multiple of 139
140: The number is a multiple of 7 and 20 at the same time
141: The number is a multiple of 3 and 47 at the same time
142: The number is a multiple of 2 and 71 at the same time
143: The number is a multiple of 11 and 13 at the same time
144: The number is a multiple of 9 and 16 at the same time
145: The number is a multiple of 5 and 29 at the same time
146: The number is a multiple of 2 and 73 at the same time
147: The number is a multiple of 3 and 49 at the same time
148: The number is a multiple of 4 and 37 at the same time
149: The sum of 15 times the last digit and the rest of the number is a multiple of 149
150: The number is a multiple of 3 and 50 at the same time
151: The difference between 15 times the last digit and the rest of the number is 0 or a multiple of 151
152: The number is a multiple of 8 and 19 at the same time
153: The number is a multiple of 9 and 17 at the same time
154: The number is a multiple of 2, 7 and 11 at the same time
155: The number is a multiple of 5 and 31 at the same time
156: The number is a multiple of 3, 4 and 13 at the same time
157: The difference between 47 times the last digit and the rest of the number is 0 or a multiple of 157
158: The number is a multiple of 2 and 79 at the same time
159: The number is a multiple of 3 and 53 at the same time
160: The last 5 digits are a multiple of 160
The 10,000s digit is even and the last 4 digits are 0,000 or a multiple of 160
The 10,000s digit is odd and the last 4 digits are the result of multiplying 80 by an odd number
161: The number is a multiple of 7 and 23 at the same time
162: The number is a multiple of 2 and 81 at the same time
163: The sum of 49 times the last digit and the rest of the number is a multiple of 163
164: The number is a multiple of 4 and 41 at the same time
165: The number is a multiple of 3, 5 and 11 at the same time
166: The number is a multiple of 2 and 83 at the same time
167: The difference between 50 times the last digit and the rest of the number is 0 or a multiple of 167
168: The number is a multiple of 3, 7 and 8 at the same time
169: The sum of 17 times the last digit and the rest of the number is a multiple of 169
170: The number is a multiple of 10 and 17 at the same time
171: The number is a multiple of 9 and 19 at the same time
172: The number is a multiple of 4 and 43 at the same time
173: The sum of 52 times the last digit and the rest of the number is a multiple of 173
174: The number is a multiple of 2, 3 and 29 at the same time
175: The number is a multiple of 7 and 25 at the same time
176: The number is a multiple of 11 and 16 at the same time
177: The number is a multiple of 3 and 59 at the same time
178: The number is a multiple of 2 and 89 at the same time
179: The sum of 18 times the last digit and the rest of the number is a multiple of 179
180: The number is a multiple of 9 and 20 at the same time
181: The difference between 18 times the last digit and the rest of the number is 0 or a multiple of 181
182: The number is a multiple of 2, 7 and 13 at the same time
183: The number is a multiple of 3 and 61 at the same time
184: The number is a multiple of 8 and 23 at the same time
185: The number is a multiple of 5 and 37 at the same time
186: The number is a multiple of 2, 3 and 31 at the same time
187: The number is a multiple of 11 and 17 at the same time
188: The number is a multiple of 4 and 47 at the same time
189: The number is a multiple of 7 and 27 at the same time
190: The number is a multiple of 10 and 19 at the same time
191: The difference between 19 times the last digit and the rest of the number is 0 or a multiple of 191
192: The number is a multiple of 3 and 64 at the same time
193: The sum of 58 times the last digit and the rest of the number is a multiple of 193
194: The number is a multiple of 2 and 97 at the same time
195: The number is a multiple of 3, 5 and 13 at the same time
196: The number is a multiple of 4 and 49 at the same time
197: The difference between 59 times the last digit and the rest of the number is 0 or a multiple of 197
198: The number is a multiple of 2, 9 and 11 at the same time
199: The sum of 20 times the last digit and the rest of the number is a multiple of 199
200: The number ends in 000, 200, 400, 600 or 800
5 Votes in Poll
1: Any number is a multiple of 1
2: The number ends in 0, 2, 4, 6 or 8
3: The sum of the digits is a multiple of 3
4: The last 2 digits are a multiple of 4
The 10s digit is even and the last digit is 0, 4 or 8
The 10s digit is odd and the last digit is 2 or 6
5: The number ends in 0 or 5
6: The number is a multiple of 2 and 3 at the same time
7: The difference between twice the last digit and the rest of the number is 0 or a multiple of 7
8: The last 3 digits are a multiple of 8
The 100s digit is even and the last 2 digits are 00 or a multiple of 8
The 100s digit is odd and the last 2 digits are the result of multiplying 4 by an odd number
9: The sum of the digits is a multiple of 9
10: The number ends in 0
11: The difference between the last digit and the rest of the number is 0 or a multiple of 11
12: The number is a multiple of 3 and 4 at the same time
13: The sum of 4 times the last digit and the rest of the number is a multiple of 13
14: The number is a multiple of 2 and 7 at the same time
15: The number is a multiple of 3 and 5 at the same time
16: The last 4 digits are a multiple of 16
The 1,000s digit is even and the last 3 digits are 000 or a multiple of 16
The 1,000s digit is odd and the last 3 digits are the result of multiplying 8 by an odd number
17: The difference between 5 times the last digit and the rest of the number is 0 or a multiple of 17
18: The number is a multiple of 2 and 9 at the same time
19: The sum of twice the last digit and the rest of the number is a multiple of 19
20: The number ends in 00, 20, 40, 60 or 80
21: The number is a multiple of 3 and 7 at the same time
22: The number is a multiple of 2 and 11 at the same time
23: The sum of 7 times the last digit and the rest of the number is a multiple of 23
24: The number is a multiple of 3 and 8 at the same time
25: The number ends in 00, 25, 50 or 75
26: The number is a multiple of 2 and 13 at the same time
27: The difference between 8 times the last digit and the rest of the number is 0 or a multiple of 27
28: The number is a multiple of 4 and 7 at the same time
29: The sum of thrice the last digit and the rest of the number is a multiple of 29
30: The number is a multiple of 3 and 10 at the same time
31: The difference between thrice the last digit and the rest of the number is 0 or a multiple of 31
32: The last 5 digits are a multiple of 32
The 10,000s digit is even and the last 4 digits are 0,000 or a multiple of 32
The 10,000s digit is odd and the last 4 digits are the result of multiplying 16 by an odd number
33: The number is a multiple of 3 and 11 at the same time
34: The number is a multiple of 2 and 17 at the same time
35: The number is a multiple of 5 and 7 at the same time
36: The number is a multiple of 4 and 9 at the same time
37: The difference between 11 times the last digit and the rest of the number is 0 or a multiple of 37
38: The number is a multiple of 2 and 19 at the same time
39: The number is a multiple of 3 and 13 at the same time
40: The last 3 digits are a multiple of 40
The 100s digit is even and the last 2 digits are 00, 40 or 80
The 100s digit is odd and the last 2 digits are 20 or 60
41: The difference between 4 times the last digit and the rest of the number is 0 or a multiple of 41
42: The number is a multiple of 2, 3 and 7 at the same time
43: The sum of 13 times the last digit and the rest of the number is a multiple of 43
44: The number is a multiple of 4 and 11 at the same time
45: The number is a multiple of 5 and 9 at the same time
46: The number is a multiple of 2 and 23 at the same time
47: The difference between 14 times the last digit and the rest of the number is 0 or a multiple of 47
48: The number is a multiple of 3 and 16 at the same time
49: The sum of 5 times the last digit and the rest of the number is a multiple of 49
50: The number ends in 00 or 50
51: The number is a multiple of 3 and 17 at the same time
52: The number is a multiple of 4 and 13 at the same time
53: The sum of 16 times the last digit and the rest of the number is a multiple of 53
54: The number is a multiple of 2 and 27 at the same time
55: The number is a multiple of 5 and 11 at the same time
56: The number is a multiple of 7 and 8 at the same time
57: The number is a multiple of 3 and 19 at the same time
58: The number is a multiple of 2 and 29 at the same time
59: The sum of 6 times the last digit and the rest of the number is a multiple of 59
60: The number is a multiple of 3 and 20 at the same time
61: The difference between 6 times the last digit and the rest of the number is 0 or a multiple of 61
62: The number is a multiple of 2 and 31 at the same time
63: The number is a multiple of 7 and 9 at the same time
64: The last 6 digits are a multiple of 64
The 100,000s digit is even and the last 5 digits are 00,000 or a multiple of 64
The 100,000s digit is odd and the last 5 digits are the result of multiplying 32 by an odd number
65: The number is a multiple of 5 and 13 at the same time
66: The number is a multiple of 2, 3 and 11 at the same time
67: The difference between 20 times the last digit and the rest of the number is 0 or a multiple of 67
68: The number is a multiple of 4 and 17 at the same time
69: The number is a multiple of 3 and 23 at the same time
70: The number is a multiple of 7 and 10 at the same time
71: The difference between 7 times the last digit and the rest of the number is 0 or a multiple of 71
72: The number is a multiple of 8 and 9 at the same time
73: The sum of 22 times the last digit and the rest of the number is a multiple of 73
74: The number is a multiple of 2 and 37 at the same time
75: The number is a multiple of 3 and 25 at the same time
76: The number is a multiple of 4 and 19 at the same time
77: The number is a multiple of 7 and 11 at the same time
78: The number is a multiple of 2, 3 and 13 at the same time
79: The sum of 8 times the last digit and the rest of the number is a multiple of 79
80: The last 4 digits are a multiple of 80
The 1,000s digit is even and the last 3 digits are 000 or a multiple of 80
The 1,000s digit is odd and the last 3 digits are the result of multiplying 40 by an odd number
81: The difference between 8 times the last digit and the rest of the number is a multiple of 81
82: The number is a multiple of 2 and 41 at the same time
83: The sum of 25 times the last digit and the rest of the number is a multiple of 83
84: The number is a multiple of 3, 4 and 7 at the same time
85: The number is a multiple of 5 and 17 at the same time
86: The number is a multiple of 2 and 43 at the same time
87: The number is a multiple of 3 and 29 at the same time
88: The number is a multiple of 8 and 11 at the same time
89: The sum of 9 times the last digit and the rest of the number is a multiple of 89
90: The number is a multiple of 9 and 10 at the same time
91: The number is a multiple of 7 and 13 at the same time
92: The number is a multiple of 4 and 23 at the same time
93: The number is a multiple of 3 and 31 at the same time
94: The number is a multiple of 2 and 47 at the same time
95: The number is a multiple of 5 and 19 at the same time
96: The number is a multiple of 3 and 32 at the same time
97: The difference between 29 times the last digit and the rest of the number is 0 or a multiple of 97
98: The number is a multiple of 2 and 49 at the same time
99: The number is a multiple of 9 and 11 at the same time
100: The number ends in 00
Numbers in bold are prime numbers
Every prime number from 1-10000 officialy has a page now!
Prime Numbers Wiki was found 11/16/2013. That is 3,652 days, counting the leap years 2016 and 2020. Over the time, the wiki had over two thousand prime number pages ever since it released!
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10 Votes in Poll
8 Votes in Poll
5 Votes in Poll
1: Any number is a multiple of 1
2: The number ends in 0, 2, 4, 6 or 8
3: The sum of the digits is a multiple of 3
4: The last 2 digits are a multiple of 4
5: The number ends in 0 or 5
6: The number is a multiple of 2 and 3 at the same time
7: The difference between twice the last digit and the rest of the number is a multiple of 7
8: The last 3 digits are a multiple of 8
9: The sum of the digits is a multiple of 9
10: The number ends in 0
11: The difference between the last digit and the rest of the number is a multiple of 11
12: The number is a multiple of 3 and 4 at the same time
13: The sum of 4 times the last digit and the rest of the number is a multiple of 13
14: The number is a multiple of 2 and 7 at the same time
15: The number is a multiple of 3 and 5 at the same time
16: The last 4 digits are a multiple of 16
17: The difference between 5 times the last digit and the rest of the number is a multiple of 17
18: The number is a multiple of 2 and 9 at the same time
19: The sum of twice the last digit and the rest of the number is a multiple of 19
20: The number ends in 00, 20, 40, 60 or 80
21: The number is a multiple of 3 and 7 at the same time
22: The number is a multiple of 2 and 11 at the same time
23: The sum of 7 times the last digit and the rest of the number is a multiple of 23
24: The number is a multiple of 3 and 8 at the same time
25: The number ends in 00, 25, 50 or 75
26: The number is a multiple of 2 and 13 at the same time
27: The difference between 8 times the last digit and the rest of the number is a multiple of 27
28: The number is a multiple of 4 and 7 at the same time
29: The sum of thrice the last digit and the rest of the number is a multiple of 29
30: The number is a multiple of 3 and 10 at the same time
31: The difference between thrice the last digit and the rest of the number is a multiple of 31
32: The last 5 digits are a multiple of 32
33: The number is a multiple of 3 and 11 at the same time
34: The number is a multiple of 2 and 17 at the same time
35: The number is a multiple of 5 and 7 at the same time
36: The number is a multiple of 4 and 9 at the same time
37: The difference between 11 times the last digit and the rest of the number is a multiple of 37
38: The number is a multiple of 2 and 19 at the same time
39: The number is a multiple of 3 and 13 at the same time
40: The last 3 digits are a multiple of 40
41: The difference between 4 times the last digit and the rest of the number is a multiple of 41
42: The number is a multiple of 2, 3 and 7 at the same time
43: The sum of 13 times the last digit and the rest of the number is a multiple of 43
44: The number is a multiple of 4 and 11 at the same time
45: The number is a multiple of 5 and 9 at the same time
46: The number is a multiple of 2 and 23 at the same time
47: The difference between 14 times the last digit and the rest of the number is a multiple of 47
48: The number is a multiple of 3 and 16 at the same time
49: The sum of 5 times the last digit and the rest of the number is a multiple of 49
50: The number ends in 00 or 50
51: The number is a multiple of 3 and 17 at the same time
52: The number is a multiple of 4 and 13 at the same time
53: The sum of 16 times the last digit and the rest of the number is a multiple of 53
54: The number is a multiple of 2 and 27 at the same time
55: The number is a multiple of 5 and 11 at the same time
56: The number is a multiple of 7 and 8 at the same time
57: The number is a multiple of 3 and 19 at the same time
58: The number is a multiple of 2 and 29 at the same time
59: The sum of 6 times the last digit and the rest of the number is a multiple of 59
60: The number is a multiple of 3 and 20 at the same time
61: The difference between 6 times the last digit and the rest of the number is a multiple of 61
62: The number is a multiple of 2 and 31 at the same time
63: The number is a multiple of 7 and 9 at the same time
64: The last 6 digits are a multiple of 64
65: The number is a multiple of 5 and 13 at the same time
66: The number is a multiple of 2, 3 and 11 at the same time
67: The difference between 20 times the last digit and the rest of the number is a multiple of 67
68: The number is a multiple of 4 and 17 at the same time
69: The number is a multiple of 3 and 23 at the same time
70: The number is a multiple of 7 and 10 at the same time
71: The difference between 7 times the last digit and the rest of the number is a multiple of 71
72: The number is a multiple of 8 and 9 at the same time
73: The sum of 22 times the last digit and the rest of the number is a multiple of 73
74: The number is a multiple of 2 and 37 at the same time
75: The number is a multiple of 3 and 25 at the same time
76: The number is a multiple of 4 and 19 at the same time
77: The number is a multiple of 7 and 11 at the same time
78: The number is a multiple of 2, 3 and 13 at the same time
79: The sum of 8 times the last digit and the rest of the number is a multiple of 79
80: The last 4 digits are a multiple of 80
81: The difference between 8 times the last digit and the rest of the number is a multiple of 81
82: The number is a multiple of 2 and 41 at the same time
83: The sum of 25 times the last digit and the rest of the number is a multiple of 83
84: The number is a multiple of 3, 4 and 7 at the same time
85: The number is a multiple of 5 and 17 at the same time
86: The number is a multiple of 2 and 43 at the same time
87: The number is a multiple of 3 and 29 at the same time
88: The number is a multiple of 8 and 11 at the same time
89: The sum of 9 times the last digit and the rest of the number is a multiple of 89
90: The number is a multiple of 9 and 10 at the same time
91: The number is a multiple of 7 and 13 at the same time
92: The number is a multiple of 4 and 23 at the same time
93: The number is a multiple of 3 and 31 at the same time
94: The number is a multiple of 2 and 47 at the same time
95: The number is a multiple of 5 and 19 at the same time
96: The number is a multiple of 3 and 32 at the same time
97: The difference between 29 times the last digit and the rest of the number is a multiple of 97
98: The number is a multiple of 2 and 49 at the same time
99: The number is a multiple of 9 and 11 at the same time
100: The number ends in 00
I've created a website that could create 10 by 10 grids and could detect prime numbers. The website was created following the Scratch project I created back in March (https://scratch.mit.edu/projects/827741044/), but more faster than the project. Check the website out at https://h0shea.github.io/10x10-prime-number-grid/ and thank you for using it!
15 Votes in Poll