Compare 1559 vs 1563
| Property | 1559 | 1563 |
|---|---|---|
| Type | prime | semiprime |
| Unique factors | 1 | 2 |
| Total factors | 1 | 2 |
| Prime factorization | 15591 | 31 × 5211 |
| Prime factorization | 1559 | 3 × 521 |
| Divisors count | 2 | 4 |
| Divisors | 1, 1559 | 1, 3, 521, 1563 |
| Number of properties | 6 | 1 |
| Chen primes | 157th | |
| Emirps | 75th | |
| Isolated primes | 147th | |
| Primes | 246th | |
| Semiprimes | 454th | |
| Sexy primes (2nd member) | 107th | |
| Sophie germain primes | 52nd | |
| Roman numberals | MDLIX | MDLXIII |
| Base 2 | 110000101112 | 110000110112 |
| Base 3 | 20102023 | 20102203 |
| Base 4 | 1201134 | 1201234 |
| Base 5 | 222145 | 222235 |
| Base 6 | 111156 | 111236 |
| Base 7 | 43557 | 43627 |
| Base 8 | 30278 | 30338 |
| Base 9 | 21229 | 21269 |
| Base 10 | 155910 | 156310 |
| Base 11 | 119811 | 11a111 |
| Base 12 | a9b12 | aa312 |
| Base 13 | 92c13 | 93313 |
| Base 14 | 7d514 | 7d914 |
| Base 15 | 6de15 | 6e315 |
| Base 16 | 61716 | 61b16 |