Compare 309 vs 319
| Property | 309 | 319 |
|---|---|---|
| Type | semiprime | semiprime |
| Unique factors | 2 | 2 |
| Total factors | 2 | 2 |
| Prime factorization | 31 × 1031 | 111 × 291 |
| Prime factorization | 3 × 103 | 11 × 29 |
| Divisors count | 4 | 4 |
| Divisors | 1, 3, 103, 309 | 1, 11, 29, 319 |
| Number of properties | 1 | 1 |
| Semiprimes | 99th | 101st |
| Roman numberals | CCCIX | CCCXIX |
| Base 2 | 1001101012 | 1001111112 |
| Base 3 | 1021103 | 1022113 |
| Base 4 | 103114 | 103334 |
| Base 5 | 22145 | 22345 |
| Base 6 | 12336 | 12516 |
| Base 7 | 6217 | 6347 |
| Base 8 | 4658 | 4778 |
| Base 9 | 3739 | 3849 |
| Base 10 | 30910 | 31910 |
| Base 11 | 26111 | 27011 |
| Base 12 | 21912 | 22712 |
| Base 13 | 1aa13 | 1b713 |
| Base 14 | 18114 | 18b14 |
| Base 15 | 15915 | 16415 |
| Base 16 | 13516 | 13f16 |