Compare 319 vs 331
| Property | 319 | 331 |
|---|---|---|
| Type | semiprime | prime |
| Unique factors | 2 | 1 |
| Total factors | 2 | 1 |
| Prime factorization | 111 × 291 | 3311 |
| Prime factorization | 11 × 29 | 331 |
| Divisors count | 4 | 2 |
| Divisors | 1, 11, 29, 319 | 1, 331 |
| Number of properties | 1 | 10 |
| Additive primes | 39th | |
| Cuban primes 1 | 7th | |
| Good primes | 24th | |
| Happy primes | 17th | |
| Harmonic primes | 28th | |
| Isolated primes | 28th | |
| Lucky primes | 19th | |
| Primes | 67th | |
| Semiprimes | 101st | |
| Sexy primes (1st member) | 37th | |
| Super primes | 19th | |
| Roman numberals | CCCXIX | CCCXXXI |
| Base 2 | 1001111112 | 1010010112 |
| Base 3 | 1022113 | 1100213 |
| Base 4 | 103334 | 110234 |
| Base 5 | 22345 | 23115 |
| Base 6 | 12516 | 13116 |
| Base 7 | 6347 | 6527 |
| Base 8 | 4778 | 5138 |
| Base 9 | 3849 | 4079 |
| Base 10 | 31910 | 33110 |
| Base 11 | 27011 | 28111 |
| Base 12 | 22712 | 23712 |
| Base 13 | 1b713 | 1c613 |
| Base 14 | 18b14 | 19914 |
| Base 15 | 16415 | 17115 |
| Base 16 | 13f16 | 14b16 |