Compare 66 vs 72
| Property | 66 | 72 |
|---|---|---|
| Type | composite number | composite number |
| Unique factors | 3 | 2 |
| Total factors | 3 | 5 |
| Prime factorization | 21 × 31 × 111 | 23 × 32 |
| Prime factorization | 2 × 3 × 11 | 2 × 2 × 2 × 3 × 3 |
| Divisors count | 8 | 12 |
| Divisors | 1, 2, 3, 6, 11, 22, 33, 66 | 1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72 |
| Number of properties | 0 | 0 |
| Roman numberals | LXVI | LXXII |
| Base 2 | 10000102 | 10010002 |
| Base 3 | 21103 | 22003 |
| Base 4 | 10024 | 10204 |
| Base 5 | 2315 | 2425 |
| Base 6 | 1506 | 2006 |
| Base 7 | 1237 | 1327 |
| Base 8 | 1028 | 1108 |
| Base 9 | 739 | 809 |
| Base 10 | 6610 | 7210 |
| Base 11 | 6011 | 6611 |
| Base 12 | 5612 | 6012 |
| Base 13 | 5113 | 5713 |
| Base 14 | 4a14 | 5214 |
| Base 15 | 4615 | 4c15 |
| Base 16 | 4216 | 4816 |