Compare 21557 vs 23531
| Property | 21557 | 23531 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 215571 | 235311 |
| Prime factorization | 21557 | 23531 |
| Divisors count | 2 | 2 |
| Divisors | 1, 21557 | 1, 23531 |
| Number of properties | 8 | 6 |
| Chen primes | 1186th | 1287th |
| Good primes | 273rd | 284th |
| Isolated primes | 1828th | |
| Long primes | 992nd | |
| Primes | 2418th | 2615th |
| Prime triplets (1st member) | 184th | |
| Pythagorean primes | 1199th | |
| Sexy primes (1st member) | 736th | 781st |
| Sexy prime triplets (1st member) | 201st | |
| Twin primes (1st member) | 366th | |
| Roman numberals | ||
| Base 2 | 1010100001101012 | 1011011111010112 |
| Base 3 | 10021201023 | 10120211123 |
| Base 4 | 111003114 | 112332234 |
| Base 5 | 11422125 | 12231115 |
| Base 6 | 2434456 | 3005356 |
| Base 7 | 1165647 | 1254147 |
| Base 8 | 520658 | 557538 |
| Base 9 | 325129 | 352459 |
| Base 10 | 2155710 | 2353110 |
| Base 11 | 1521811 | 1675211 |
| Base 12 | 1058512 | 1174b12 |
| Base 13 | 9a7313 | a93113 |
| Base 14 | 7bdb14 | 880b14 |
| Base 15 | 65c215 | 6e8b15 |
| Base 16 | 543516 | 5beb16 |