Compare 21557 vs 23557
| Property | 21557 | 23557 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 215571 | 235571 |
| Prime factorization | 21557 | 23557 |
| Divisors count | 2 | 2 |
| Divisors | 1, 21557 | 1, 23557 |
| Number of properties | 8 | 9 |
| Chen primes | 1186th | 1290th |
| Cousin primes (1st member) | 392nd | |
| Good primes | 273rd | 287th |
| Harmonic primes | 967th | |
| Isolated primes | 1830th | |
| Primes | 2418th | 2619th |
| Prime triplets (1st member) | 184th | 196th |
| Pythagorean primes | 1199th | 1299th |
| Sexy primes (1st member) | 736th | 782nd |
| Sexy prime triplets (1st member) | 201st | |
| Twin primes (1st member) | 366th | |
| Roman numberals | ||
| Base 2 | 1010100001101012 | 1011100000001012 |
| Base 3 | 10021201023 | 10120221113 |
| Base 4 | 111003114 | 113000114 |
| Base 5 | 11422125 | 12232125 |
| Base 6 | 2434456 | 3010216 |
| Base 7 | 1165647 | 1254527 |
| Base 8 | 520658 | 560058 |
| Base 9 | 325129 | 352749 |
| Base 10 | 2155710 | 2355710 |
| Base 11 | 1521811 | 1677611 |
| Base 12 | 1058512 | 1177112 |
| Base 13 | 9a7313 | a95113 |
| Base 14 | 7bdb14 | 882914 |
| Base 15 | 65c215 | 6ea715 |
| Base 16 | 543516 | 5c0516 |