Compare 307 vs 331
| Property | 307 | 331 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 3071 | 3311 |
| Prime factorization | 307 | 331 |
| Divisors count | 2 | 2 |
| Divisors | 1, 307 | 1, 331 |
| Number of properties | 9 | 10 |
| Additive primes | 39th | |
| Chen primes | 47th | |
| Cousin primes (1st member) | 18th | |
| Cuban primes 1 | 7th | |
| Good primes | 22nd | 24th |
| Happy primes | 17th | |
| Harmonic primes | 25th | 28th |
| Isolated primes | 26th | 28th |
| Lucky primes | 18th | 19th |
| Primes | 63rd | 67th |
| Prime triplets (1st member) | 18th | |
| Sexy primes (1st member) | 35th | 37th |
| Super primes | 19th | |
| Roman numberals | CCCVII | CCCXXXI |
| Base 2 | 1001100112 | 1010010112 |
| Base 3 | 1021013 | 1100213 |
| Base 4 | 103034 | 110234 |
| Base 5 | 22125 | 23115 |
| Base 6 | 12316 | 13116 |
| Base 7 | 6167 | 6527 |
| Base 8 | 4638 | 5138 |
| Base 9 | 3719 | 4079 |
| Base 10 | 30710 | 33110 |
| Base 11 | 25a11 | 28111 |
| Base 12 | 21712 | 23712 |
| Base 13 | 1a813 | 1c613 |
| Base 14 | 17d14 | 19914 |
| Base 15 | 15715 | 17115 |
| Base 16 | 13316 | 14b16 |