Compare 12917 vs 12921
| Property | 12917 | 12921 |
|---|---|---|
| Type | prime | composite number |
| Unique factors | 1 | 3 |
| Total factors | 1 | 3 |
| Prime factorization | 129171 | 31 × 591 × 731 |
| Prime factorization | 12917 | 3 × 59 × 73 |
| Divisors count | 2 | 8 |
| Divisors | 1, 12917 | 1, 3, 59, 73, 177, 219, 4307, 12921 |
| Number of properties | 9 | 0 |
| Chen primes | 780th | |
| Primes | 1538th | |
| Prime triplets (1st member) | 126th | |
| Pythagorean primes | 763rd | |
| Sexy primes (1st member) | 492nd | |
| Sexy primes (2nd member) | 491st | |
| Sexy prime triplets (2nd member) | 139th | |
| Twin primes (1st member) | 246th | |
| Ulam primes | 111th | |
| Roman numberals | ||
| Base 2 | 110010011101012 | 110010011110012 |
| Base 3 | 1222011023 | 1222011203 |
| Base 4 | 30213114 | 30213214 |
| Base 5 | 4031325 | 4031415 |
| Base 6 | 1354456 | 1354536 |
| Base 7 | 524427 | 524467 |
| Base 8 | 311658 | 311718 |
| Base 9 | 186429 | 186469 |
| Base 10 | 1291710 | 1292110 |
| Base 11 | 978311 | 978711 |
| Base 12 | 758512 | 758912 |
| Base 13 | 5b5813 | 5b5c13 |
| Base 14 | 49c914 | 49cd14 |
| Base 15 | 3c6215 | 3c6615 |
| Base 16 | 327516 | 327916 |