397

Basic Information

Cardinal Number

three hundred and ninety-seven

Ordinal Number

three hundred and ninety seventh

Roman Numeral

CCCXCVII

Greek Numeral

ΤϞΖ´

Factorization

397

Different Representations

Binary Form

110001101₂

Ternary Form

112201₃

Quaternary Form

12031₄

Quinary Form

3042₅

Senary Form

1501₆

Septenary Form

1105₇

Octal Form

615₈

Nonary Form

481₉

Undecimal Form

331₁₁

Duodecimal Form

291₁₂

Tridecimal Form

247₁₃

Quattuordecimal Form

205₁₄

Quindecimal Form

1B7₁₅

Hexadecimal Form

18D₁₆

Septendecimal Form

166₁₇

Octodecimal Form

141₁₈

Novemdecimal Form

11H₁₉

Vigesimal Form

JH₂₀

Unvigesimal Form

IJ₂₁

Duovigesimal Form

I1₂₂

Trevigesimal Form

H6₂₃

Quattuorvigesimal Form

GD₂₄

Quinvigesimal Form

FM₂₅

Hexavigesimal Form

F7₂₆

Septenvigesimal Form

EJ₂₇

Octovigesimal Form

E5₂₈

Novemvigesimal Form

DK₂₉

Trigesimal Form

D7₃₀

Untrigesimal Form

CP₃₁

Duotrigesimal Form

CD₃₂

Tretrigesimal Form

C1₃₃

Quattuortrigesimal Form

BN₃₄

Quintrigesimal Form

BC₃₅

Hexatrigesimal Form

B1₃₆

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389	397	401

397 is a prime number from 301-400. 397 has 2 factors, 1 and 397. It is the 78th prime number, and the sixteenth and last prime number from 301-400.

Proofs[]

— 397 is divisible by 1.

— 397 is not divisible by 2-396.

— 397 is divisible by 397.

Relationship with other odd numbers[]

The numbers before[]

The previous prime number is 389.
- In particular, 391 is not a prime number, because it is the product of 17 and 23.
The previous prime number before 389 is 383.

The numbers after[]

The next prime number is 401.
- 397 and 401 are four numbers apart; therefore, they are cousin primes.
409 is the next prime number after 401.
- 403 is divisible by 13 and 31, while 407 is divisible by 11 and 37.

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