Compare 69 vs 81
| Property | 69 | 81 |
|---|---|---|
| Type | semiprime | composite number |
| Unique factors | 2 | 1 |
| Total factors | 2 | 4 |
| Prime factorization | 31 × 231 | 34 |
| Prime factorization | 3 × 23 | 3 × 3 × 3 × 3 |
| Divisors count | 4 | 5 |
| Divisors | 1, 3, 23, 69 | 1, 3, 9, 27, 81 |
| Number of properties | 1 | 0 |
| Semiprimes | 24th | |
| Roman numberals | LXIX | LXXXI |
| Base 2 | 10001012 | 10100012 |
| Base 3 | 21203 | 100003 |
| Base 4 | 10114 | 11014 |
| Base 5 | 2345 | 3115 |
| Base 6 | 1536 | 2136 |
| Base 7 | 1267 | 1447 |
| Base 8 | 1058 | 1218 |
| Base 9 | 769 | 1009 |
| Base 10 | 6910 | 8110 |
| Base 11 | 6311 | 7411 |
| Base 12 | 5912 | 6912 |
| Base 13 | 5413 | 6313 |
| Base 14 | 4d14 | 5b14 |
| Base 15 | 4915 | 5615 |
| Base 16 | 4516 | 5116 |