Compare 626 vs 631
| Property | 626 | 631 |
|---|---|---|
| Type | semiprime | prime |
| Unique factors | 2 | 1 |
| Total factors | 2 | 1 |
| Prime factorization | 21 × 3131 | 6311 |
| Prime factorization | 2 × 313 | 631 |
| Divisors count | 4 | 2 |
| Divisors | 1, 2, 313, 626 | 1, 631 |
| Number of properties | 1 | 6 |
| Centered triangular primes | 7th | |
| Chen primes | 80th | |
| Cuban primes 1 | 10th | |
| Isolated primes | 60th | |
| Lucky primes | 32nd | |
| Primes | 115th | |
| Semiprimes | 191st | |
| Roman numberals | DCXXVI | DCXXXI |
| Base 2 | 10011100102 | 10011101112 |
| Base 3 | 2120123 | 2121013 |
| Base 4 | 213024 | 213134 |
| Base 5 | 100015 | 100115 |
| Base 6 | 25226 | 25316 |
| Base 7 | 15537 | 15617 |
| Base 8 | 11628 | 11678 |
| Base 9 | 7659 | 7719 |
| Base 10 | 62610 | 63110 |
| Base 11 | 51a11 | 52411 |
| Base 12 | 44212 | 44712 |
| Base 13 | 39213 | 39713 |
| Base 14 | 32a14 | 33114 |
| Base 15 | 2bb15 | 2c115 |
| Base 16 | 27216 | 27716 |