Compare 66 vs 68
| Property | 66 | 68 |
|---|---|---|
| Type | composite number | composite number |
| Unique factors | 3 | 2 |
| Total factors | 3 | 3 |
| Prime factorization | 21 × 31 × 111 | 22 × 171 |
| Prime factorization | 2 × 3 × 11 | 2 × 2 × 17 |
| Divisors count | 8 | 6 |
| Divisors | 1, 2, 3, 6, 11, 22, 33, 66 | 1, 2, 4, 17, 34, 68 |
| Number of properties | 0 | 0 |
| Roman numberals | LXVI | LXVIII |
| Base 2 | 10000102 | 10001002 |
| Base 3 | 21103 | 21123 |
| Base 4 | 10024 | 10104 |
| Base 5 | 2315 | 2335 |
| Base 6 | 1506 | 1526 |
| Base 7 | 1237 | 1257 |
| Base 8 | 1028 | 1048 |
| Base 9 | 739 | 759 |
| Base 10 | 6610 | 6810 |
| Base 11 | 6011 | 6211 |
| Base 12 | 5612 | 5812 |
| Base 13 | 5113 | 5313 |
| Base 14 | 4a14 | 4c14 |
| Base 15 | 4615 | 4815 |
| Base 16 | 4216 | 4416 |