Compare 457 vs 491
| Property | 457 | 491 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 4571 | 4911 |
| Prime factorization | 457 | 491 |
| Divisors count | 2 | 2 |
| Divisors | 1, 457 | 1, 491 |
| Number of properties | 6 | 7 |
| Chen primes | 66th | |
| Cousin primes (1st member) | 24th | |
| Cousin primes (2nd member) | 26th | |
| Harmonic primes | 38th | |
| Isolated primes | 43rd | 47th |
| Long primes | 34th | |
| Primes | 88th | 94th |
| Prime triplets (1st member) | 21st | |
| Pythagorean primes | 43rd | |
| Sexy primes (1st member) | 45th | |
| Sophie germain primes | 25th | |
| Roman numberals | CDLVII | CDXCI |
| Base 2 | 1110010012 | 1111010112 |
| Base 3 | 1212213 | 2000123 |
| Base 4 | 130214 | 132234 |
| Base 5 | 33125 | 34315 |
| Base 6 | 20416 | 21356 |
| Base 7 | 12227 | 13017 |
| Base 8 | 7118 | 7538 |
| Base 9 | 5579 | 6059 |
| Base 10 | 45710 | 49110 |
| Base 11 | 38611 | 40711 |
| Base 12 | 32112 | 34b12 |
| Base 13 | 29213 | 2ba13 |
| Base 14 | 24914 | 27114 |
| Base 15 | 20715 | 22b15 |
| Base 16 | 1c916 | 1eb16 |