Compare 57 vs 66
| Property | 57 | 66 |
|---|---|---|
| Type | semiprime | composite number |
| Unique factors | 2 | 3 |
| Total factors | 2 | 3 |
| Prime factorization | 31 × 191 | 21 × 31 × 111 |
| Prime factorization | 3 × 19 | 2 × 3 × 11 |
| Divisors count | 4 | 8 |
| Divisors | 1, 3, 19, 57 | 1, 2, 3, 6, 11, 22, 33, 66 |
| Number of properties | 1 | 0 |
| Semiprimes | 20th | |
| Roman numberals | LVII | LXVI |
| Base 2 | 1110012 | 10000102 |
| Base 3 | 20103 | 21103 |
| Base 4 | 3214 | 10024 |
| Base 5 | 2125 | 2315 |
| Base 6 | 1336 | 1506 |
| Base 7 | 1117 | 1237 |
| Base 8 | 718 | 1028 |
| Base 9 | 639 | 739 |
| Base 10 | 5710 | 6610 |
| Base 11 | 5211 | 6011 |
| Base 12 | 4912 | 5612 |
| Base 13 | 4513 | 5113 |
| Base 14 | 4114 | 4a14 |
| Base 15 | 3c15 | 4615 |
| Base 16 | 3916 | 4216 |