Compare 139 vs 331
| Property | 139 | 331 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 1391 | 3311 |
| Prime factorization | 139 | 331 |
| Divisors count | 2 | 2 |
| Divisors | 1, 139 | 1, 331 |
| Number of properties | 6 | 10 |
| Additive primes | 19th | 39th |
| Chen primes | 28th | |
| Cuban primes 1 | 7th | |
| Good primes | 24th | |
| Happy primes | 10th | 17th |
| Harmonic primes | 11th | 28th |
| Isolated primes | 28th | |
| Lucky primes | 19th | |
| Primes | 34th | 67th |
| Sexy primes (1st member) | 37th | |
| Super primes | 19th | |
| Twin primes (2nd member) | 11th | |
| Roman numberals | CXXXIX | CCCXXXI |
| Base 2 | 100010112 | 1010010112 |
| Base 3 | 120113 | 1100213 |
| Base 4 | 20234 | 110234 |
| Base 5 | 10245 | 23115 |
| Base 6 | 3516 | 13116 |
| Base 7 | 2567 | 6527 |
| Base 8 | 2138 | 5138 |
| Base 9 | 1649 | 4079 |
| Base 10 | 13910 | 33110 |
| Base 11 | 11711 | 28111 |
| Base 12 | b712 | 23712 |
| Base 13 | a913 | 1c613 |
| Base 14 | 9d14 | 19914 |
| Base 15 | 9415 | 17115 |
| Base 16 | 8b16 | 14b16 |