Compare 643 vs 997
Property | 643 | 997 |
---|---|---|
Type | prime | prime |
Unique factors | 1 | 1 |
Total factors | 1 | 1 |
Prime factorization | 6431 | 9971 |
Prime factorization | 643 | 997 |
Divisors count | 2 | 2 |
Divisors | 1, 643 | 1, 997 |
Number of properties | 7 | 6 |
Additive primes | 63rd | |
Cousin primes (1st member) | 29th | |
Isolated primes | 99th | |
Left-truncatable primes | 38th | 54th |
Lucky primes | 33rd | 43rd |
Primes | 117th | 168th |
Prime triplets (2nd member) | 24th | |
Pythagorean primes | 80th | |
Sexy primes (2nd member) | 74th | |
Twin primes (2nd member) | 29th | |
Roman numberals | DCXLIII | CMXCVII |
Base 2 | 10100000112 | 11111001012 |
Base 3 | 2122113 | 11002213 |
Base 4 | 220034 | 332114 |
Base 5 | 100335 | 124425 |
Base 6 | 25516 | 43416 |
Base 7 | 16067 | 26237 |
Base 8 | 12038 | 17458 |
Base 9 | 7849 | 13279 |
Base 10 | 64310 | 99710 |
Base 11 | 53511 | 82711 |
Base 12 | 45712 | 6b112 |
Base 13 | 3a613 | 5b913 |
Base 14 | 33d14 | 51314 |
Base 15 | 2cd15 | 46715 |
Base 16 | 28316 | 3e516 |