Compare 21557 vs 22691
| Property | 21557 | 22691 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 215571 | 226911 |
| Prime factorization | 21557 | 22691 |
| Divisors count | 2 | 2 |
| Divisors | 1, 21557 | 1, 22691 |
| Number of properties | 8 | 7 |
| Chen primes | 1186th | 1242nd |
| Good primes | 273rd | 279th |
| Harmonic primes | 935th | |
| Isolated primes | 1767th | |
| Long primes | 956th | |
| Primes | 2418th | 2534th |
| Prime triplets (1st member) | 184th | |
| Pythagorean primes | 1199th | |
| Sexy primes (1st member) | 736th | 761st |
| Sexy prime triplets (1st member) | 201st | |
| Twin primes (1st member) | 366th | |
| Roman numberals | ||
| Base 2 | 1010100001101012 | 1011000101000112 |
| Base 3 | 10021201023 | 10110101023 |
| Base 4 | 111003114 | 112022034 |
| Base 5 | 11422125 | 12112315 |
| Base 6 | 2434456 | 2530156 |
| Base 7 | 1165647 | 1231047 |
| Base 8 | 520658 | 542438 |
| Base 9 | 325129 | 341129 |
| Base 10 | 2155710 | 2269110 |
| Base 11 | 1521811 | 1605911 |
| Base 12 | 1058512 | 1116b12 |
| Base 13 | 9a7313 | a43613 |
| Base 14 | 7bdb14 | 83ab14 |
| Base 15 | 65c215 | 6acb15 |
| Base 16 | 543516 | 58a316 |