Compare 63 vs 66
| Property | 63 | 66 |
|---|---|---|
| Type | composite number | composite number |
| Unique factors | 2 | 3 |
| Total factors | 3 | 3 |
| Prime factorization | 32 × 71 | 21 × 31 × 111 |
| Prime factorization | 3 × 3 × 7 | 2 × 3 × 11 |
| Divisors count | 6 | 8 |
| Divisors | 1, 3, 7, 9, 21, 63 | 1, 2, 3, 6, 11, 22, 33, 66 |
| Number of properties | 0 | 0 |
| Roman numberals | LXIII | LXVI |
| Base 2 | 1111112 | 10000102 |
| Base 3 | 21003 | 21103 |
| Base 4 | 3334 | 10024 |
| Base 5 | 2235 | 2315 |
| Base 6 | 1436 | 1506 |
| Base 7 | 1207 | 1237 |
| Base 8 | 778 | 1028 |
| Base 9 | 709 | 739 |
| Base 10 | 6310 | 6610 |
| Base 11 | 5811 | 6011 |
| Base 12 | 5312 | 5612 |
| Base 13 | 4b13 | 5113 |
| Base 14 | 4714 | 4a14 |
| Base 15 | 4315 | 4615 |
| Base 16 | 3f16 | 4216 |