Compare 557 vs 566
| Property | 557 | 566 |
|---|---|---|
| Type | prime | semiprime |
| Unique factors | 1 | 2 |
| Total factors | 1 | 2 |
| Prime factorization | 5571 | 21 × 2831 |
| Prime factorization | 557 | 2 × 283 |
| Divisors count | 2 | 4 |
| Divisors | 1, 557 | 1, 2, 283, 566 |
| Number of properties | 9 | 1 |
| Additive primes | 55th | |
| Chen primes | 72nd | |
| Good primes | 29th | |
| Harmonic primes | 43rd | |
| Isolated primes | 53rd | |
| Primes | 102nd | |
| Pythagorean primes | 48th | |
| Semiprimes | 178th | |
| Sexy primes (1st member) | 49th | |
| Sexy prime triplets (1st member) | 20th | |
| Roman numberals | DLVII | DLXVI |
| Base 2 | 10001011012 | 10001101102 |
| Base 3 | 2021223 | 2022223 |
| Base 4 | 202314 | 203124 |
| Base 5 | 42125 | 42315 |
| Base 6 | 23256 | 23426 |
| Base 7 | 14247 | 14367 |
| Base 8 | 10558 | 10668 |
| Base 9 | 6789 | 6889 |
| Base 10 | 55710 | 56610 |
| Base 11 | 46711 | 47511 |
| Base 12 | 3a512 | 3b212 |
| Base 13 | 33b13 | 34713 |
| Base 14 | 2bb14 | 2c614 |
| Base 15 | 27215 | 27b15 |
| Base 16 | 22d16 | 23616 |