Compare 67 vs 331
| Property | 67 | 331 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 671 | 3311 |
| Prime factorization | 67 | 331 |
| Divisors count | 2 | 2 |
| Divisors | 1, 67 | 1, 331 |
| Number of properties | 17 | 10 |
| Additive primes | 12th | 39th |
| Chen primes | 17th | |
| Cousin primes (1st member) | 7th | |
| Cuban primes 1 | 7th | |
| Good primes | 9th | 24th |
| Happy primes | 17th | |
| Harmonic primes | 6th | 28th |
| Isolated primes | 6th | 28th |
| Left-truncatable primes | 12th | |
| Lucky primes | 7th | 19th |
| Primes | 19th | 67th |
| Prime triplets (1st member) | 8th | |
| Sexy primes (1st member) | 13th | 37th |
| Sexy primes (2nd member) | 12th | |
| Sexy prime quadrupletss (2nd member) | 4th | |
| Sexy prime triplets (1st member) | 9th | |
| Sexy prime triplets (2nd member) | 8th | |
| Solinas primes | 16th | |
| Super primes | 8th | 19th |
| Roman numberals | LXVII | CCCXXXI |
| Base 2 | 10000112 | 1010010112 |
| Base 3 | 21113 | 1100213 |
| Base 4 | 10034 | 110234 |
| Base 5 | 2325 | 23115 |
| Base 6 | 1516 | 13116 |
| Base 7 | 1247 | 6527 |
| Base 8 | 1038 | 5138 |
| Base 9 | 749 | 4079 |
| Base 10 | 6710 | 33110 |
| Base 11 | 6111 | 28111 |
| Base 12 | 5712 | 23712 |
| Base 13 | 5213 | 1c613 |
| Base 14 | 4b14 | 19914 |
| Base 15 | 4715 | 17115 |
| Base 16 | 4316 | 14b16 |