Compare 308 vs 309
| Property | 308 | 309 |
|---|---|---|
| Type | composite number | semiprime |
| Unique factors | 3 | 2 |
| Total factors | 4 | 2 |
| Prime factorization | 22 × 71 × 111 | 31 × 1031 |
| Prime factorization | 2 × 2 × 7 × 11 | 3 × 103 |
| Divisors count | 12 | 4 |
| Divisors | 1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 308 | 1, 3, 103, 309 |
| Number of properties | 0 | 1 |
| Semiprimes | 99th | |
| Roman numberals | CCCVIII | CCCIX |
| Base 2 | 1001101002 | 1001101012 |
| Base 3 | 1021023 | 1021103 |
| Base 4 | 103104 | 103114 |
| Base 5 | 22135 | 22145 |
| Base 6 | 12326 | 12336 |
| Base 7 | 6207 | 6217 |
| Base 8 | 4648 | 4658 |
| Base 9 | 3729 | 3739 |
| Base 10 | 30810 | 30910 |
| Base 11 | 26011 | 26111 |
| Base 12 | 21812 | 21912 |
| Base 13 | 1a913 | 1aa13 |
| Base 14 | 18014 | 18114 |
| Base 15 | 15815 | 15915 |
| Base 16 | 13416 | 13516 |