Compare 309 vs 321
| Property | 309 | 321 |
|---|---|---|
| Type | semiprime | semiprime |
| Unique factors | 2 | 2 |
| Total factors | 2 | 2 |
| Prime factorization | 31 × 1031 | 31 × 1071 |
| Prime factorization | 3 × 103 | 3 × 107 |
| Divisors count | 4 | 4 |
| Divisors | 1, 3, 103, 309 | 1, 3, 107, 321 |
| Number of properties | 1 | 1 |
| Semiprimes | 99th | 102nd |
| Roman numberals | CCCIX | CCCXXI |
| Base 2 | 1001101012 | 1010000012 |
| Base 3 | 1021103 | 1022203 |
| Base 4 | 103114 | 110014 |
| Base 5 | 22145 | 22415 |
| Base 6 | 12336 | 12536 |
| Base 7 | 6217 | 6367 |
| Base 8 | 4658 | 5018 |
| Base 9 | 3739 | 3869 |
| Base 10 | 30910 | 32110 |
| Base 11 | 26111 | 27211 |
| Base 12 | 21912 | 22912 |
| Base 13 | 1aa13 | 1b913 |
| Base 14 | 18114 | 18d14 |
| Base 15 | 15915 | 16615 |
| Base 16 | 13516 | 14116 |