Compare 127 vs 331
| Property | 127 | 331 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 1271 | 3311 |
| Prime factorization | 127 | 331 |
| Divisors count | 2 | 2 |
| Divisors | 1, 127 | 1, 331 |
| Number of properties | 13 | 10 |
| Additive primes | 39th | |
| Chen primes | 25th | |
| Class 1+ primes | 13th | |
| Cousin primes (1st member) | 12th | |
| Cuban primes 1 | 5th | 7th |
| Double mersenne primes | 2nd | |
| Good primes | 13th | 24th |
| Happy primes | 17th | |
| Harmonic primes | 28th | |
| Isolated primes | 12th | 28th |
| Lucky primes | 10th | 19th |
| Mersenne primes | 4th | |
| Pierpont primes of the 2nd kind | 13th | |
| Primes | 31st | 67th |
| Sexy primes (1st member) | 37th | |
| Solinas primes | 22nd | |
| Super primes | 11th | 19th |
| Roman numberals | CXXVII | CCCXXXI |
| Base 2 | 11111112 | 1010010112 |
| Base 3 | 112013 | 1100213 |
| Base 4 | 13334 | 110234 |
| Base 5 | 10025 | 23115 |
| Base 6 | 3316 | 13116 |
| Base 7 | 2417 | 6527 |
| Base 8 | 1778 | 5138 |
| Base 9 | 1519 | 4079 |
| Base 10 | 12710 | 33110 |
| Base 11 | 10611 | 28111 |
| Base 12 | a712 | 23712 |
| Base 13 | 9a13 | 1c613 |
| Base 14 | 9114 | 19914 |
| Base 15 | 8715 | 17115 |
| Base 16 | 7f16 | 14b16 |