Compare 65 vs 72
| Property | 65 | 72 |
|---|---|---|
| Type | semiprime | composite number |
| Unique factors | 2 | 2 |
| Total factors | 2 | 5 |
| Prime factorization | 51 × 131 | 23 × 32 |
| Prime factorization | 5 × 13 | 2 × 2 × 2 × 3 × 3 |
| Divisors count | 4 | 12 |
| Divisors | 1, 5, 13, 65 | 1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72 |
| Number of properties | 1 | 0 |
| Semiprimes | 23rd | |
| Roman numberals | LXV | LXXII |
| Base 2 | 10000012 | 10010002 |
| Base 3 | 21023 | 22003 |
| Base 4 | 10014 | 10204 |
| Base 5 | 2305 | 2425 |
| Base 6 | 1456 | 2006 |
| Base 7 | 1227 | 1327 |
| Base 8 | 1018 | 1108 |
| Base 9 | 729 | 809 |
| Base 10 | 6510 | 7210 |
| Base 11 | 5a11 | 6611 |
| Base 12 | 5512 | 6012 |
| Base 13 | 5013 | 5713 |
| Base 14 | 4914 | 5214 |
| Base 15 | 4515 | 4c15 |
| Base 16 | 4116 | 4816 |