Compare 66 vs 78
| Property | 66 | 78 |
|---|---|---|
| Type | composite number | composite number |
| Unique factors | 3 | 3 |
| Total factors | 3 | 3 |
| Prime factorization | 21 × 31 × 111 | 21 × 31 × 131 |
| Prime factorization | 2 × 3 × 11 | 2 × 3 × 13 |
| Divisors count | 8 | 8 |
| Divisors | 1, 2, 3, 6, 11, 22, 33, 66 | 1, 2, 3, 6, 13, 26, 39, 78 |
| Number of properties | 0 | 0 |
| Roman numberals | LXVI | LXXVIII |
| Base 2 | 10000102 | 10011102 |
| Base 3 | 21103 | 22203 |
| Base 4 | 10024 | 10324 |
| Base 5 | 2315 | 3035 |
| Base 6 | 1506 | 2106 |
| Base 7 | 1237 | 1417 |
| Base 8 | 1028 | 1168 |
| Base 9 | 739 | 869 |
| Base 10 | 6610 | 7810 |
| Base 11 | 6011 | 7111 |
| Base 12 | 5612 | 6612 |
| Base 13 | 5113 | 6013 |
| Base 14 | 4a14 | 5814 |
| Base 15 | 4615 | 5315 |
| Base 16 | 4216 | 4e16 |