Changes: 211

Revision as of 16:35, 3 November 2017

211

Basic Information

Cardinal Number

two hundred and eleven

Ordinal Number

two hundred and eleventh

Roman Numeral

CCXI

Greek Numeral

ΣΙΑ´

Factorization

211

Standard Form

2.11 × 10²

Different Representations

Binary Form

11010011₂

Ternary Form

21211₃

Quaternary Form

3103₄

Quinary Form

1321₅

Senary Form

551₆

Septenary Form

421₇

Octal Form

323₈

Nonary Form

254₉

Undecimal Form

182₁₁

Duodecimal Form

157₁₂

Tridecimal Form

133₁₃

Quattuordecimal Form

111₁₄

Quindecimal Form

E1₁₅

Hexadecimal Form

D3₁₆

Septendecimal Form

C7₁₇

Octodecimal Form

BD₁₈

Novemdecimal Form

B2₁₉

Vigesimal Form

AB₂₀

Unvigesimal Form

A1₂₁

Duovigesimal Form

9D₂₂

Trevigesimal Form

94₂₃

Quattuorvigesimal Form

8J₂₄

Quinvigesimal Form

8B₂₅

Hexavigesimal Form

83₂₆

Septenvigesimal Form

7M₂₇

Octovigesimal Form

7F₂₈

Novemvigesimal Form

78₂₉

Trigesimal Form

71₃₀

Untrigesimal Form

6P₃₁

Duotrigesimal Form

6J₃₂

Tretrigesimal Form

6D₃₃

Quattuortrigesimal Form

67₃₄

Quintrigesimal Form

61₃₅

Hexatrigesimal Form

5V₃₆

Previous	Current	Next
201	211	223

211 is a prime number from 201-300. 211 has 2 factors, 1 and 211. It is the 47th prime number, and the first prime number from 201-300.

Proofs

— 211 can be divided by 1.

— 211 cannot be divided by 2-210.

— 211 can be divided by 211.

As an Exponent of Mersenne Number

2²¹¹ - 1 is divisible by numbers such as 15,193 and 60,272,956,433,838,849,161, and is therefore not a prime number.

Relationship with other odd numbers

The numbers before

The previous prime number is 199.
- 199 and 211 are twelve numbers apart. It is a large gap.
- In particular, 201 and 207 are divisible by 3, 203 by 7, and 209 by 11.
The previous prime number before 199 is 197.

The numbers after

The next prime number is 223.
- 211 and 223 are twelve numbers apart. It is another large gap.
- In particular, 213 and 219 are divisible by 3, while 217 is divisible by 7.
- Notably, 221 can be factored as 13 x 17.
227 is the next prime number after 223.

Trivia

211 is the only known prime number that is 208 away from two different prime numbers (3 and 419).

Prime Numbers 1-1,000

1-100
1-25	2 • 3 • 5 • 7 • 11 • 13 • 17 • 19 • 23
26-50	29 • 31 • 37 • 41 • 43 • 47
51-75	53 • 59 • 61 • 67 • 71 • 73
76-100	79 • 83 • 89 • 97

101-200
101-125	101 • 103 • 107 • 109 • 113
126-150	127 • 131 • 137 • 139 • 149
151-175	151 • 157 • 163 • 167 • 173
176-200	179 • 181 • 191 • 193 • 197 • 199

201-400
201-250	211 • 223 • 227 • 229 • 233 • 239 • 241
250-300	251 • 257 • 263 • 269 • 271 • 277 • 281 • 283 • 293
301-350	307 • 311 • 313 • 317 • 331 • 337 • 347 • 349
351-400	353 • 359 • 367 • 373 • 379 • 383 • 389 • 397

401-600
401-450	401 • 409 • 419 • 421 • 431 • 433 • 439 • 443 • 449
450-500	457 • 461 • 463 • 467 • 479 • 487 • 491 • 499
501-550	503 • 509 • 521 • 523 • 541 • 547
551-600	557 • 563 • 569 • 571 • 577 • 587 • 593 • 599

601-800
601-650	601 • 607 • 613 • 617 • 619 • 631 • 641 • 643 • 647
651-700	653 • 659 • 661 • 673 • 677 • 683 • 691
701-750	701 • 709 • 719 • 727 • 733 • 739 • 743
751-800	751 • 757 • 761 • 769 • 773 • 787 • 797

801-1,000
801-850	809 • 811 • 821 • 823 • 827 • 829 • 839
851-900	853 • 857 • 859 • 863 • 877 • 881 • 883 • 887
901-950	907 • 911 • 919 • 929 • 937 • 941 • 947
951-1000	953 • 967 • 971 • 977 • 983 • 991 • 997

@@ Line 22: / Line 22: @@
 *The previous prime number is 199.
 **199 and 211 are twelve numbers apart. It is a large gap.
-**In particular, [[201]] and [[207]] are divisible by 3, [[203]] by 7, and 209 by 11.
+**In particular, [[201]] and [[207]] are divisible by 3, [[203]] by 7, and [[209]] by 11.
 *The previous prime number before 199 is 197.
 ===The numbers after===