Compare 623 vs 631
| Property | 623 | 631 |
|---|---|---|
| Type | semiprime | prime |
| Unique factors | 2 | 1 |
| Total factors | 2 | 1 |
| Prime factorization | 71 × 891 | 6311 |
| Prime factorization | 7 × 89 | 631 |
| Divisors count | 4 | 2 |
| Divisors | 1, 7, 89, 623 | 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 | 190th | |
| Roman numberals | DCXXIII | DCXXXI |
| Base 2 | 10011011112 | 10011101112 |
| Base 3 | 2120023 | 2121013 |
| Base 4 | 212334 | 213134 |
| Base 5 | 44435 | 100115 |
| Base 6 | 25156 | 25316 |
| Base 7 | 15507 | 15617 |
| Base 8 | 11578 | 11678 |
| Base 9 | 7629 | 7719 |
| Base 10 | 62310 | 63110 |
| Base 11 | 51711 | 52411 |
| Base 12 | 43b12 | 44712 |
| Base 13 | 38c13 | 39713 |
| Base 14 | 32714 | 33114 |
| Base 15 | 2b815 | 2c115 |
| Base 16 | 26f16 | 27716 |