Compare 65 vs 68
| Property | 65 | 68 |
|---|---|---|
| Type | semiprime | composite number |
| Unique factors | 2 | 2 |
| Total factors | 2 | 3 |
| Prime factorization | 51 × 131 | 22 × 171 |
| Prime factorization | 5 × 13 | 2 × 2 × 17 |
| Divisors count | 4 | 6 |
| Divisors | 1, 5, 13, 65 | 1, 2, 4, 17, 34, 68 |
| Number of properties | 1 | 0 |
| Semiprimes | 23rd | |
| Roman numberals | LXV | LXVIII |
| Base 2 | 10000012 | 10001002 |
| Base 3 | 21023 | 21123 |
| Base 4 | 10014 | 10104 |
| Base 5 | 2305 | 2335 |
| Base 6 | 1456 | 1526 |
| Base 7 | 1227 | 1257 |
| Base 8 | 1018 | 1048 |
| Base 9 | 729 | 759 |
| Base 10 | 6510 | 6810 |
| Base 11 | 5a11 | 6211 |
| Base 12 | 5512 | 5812 |
| Base 13 | 5013 | 5313 |
| Base 14 | 4914 | 4c14 |
| Base 15 | 4515 | 4815 |
| Base 16 | 4116 | 4416 |