Compare 127 vs 131
| Property | 127 | 131 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 1271 | 1311 |
| Prime factorization | 127 | 131 |
| Divisors count | 2 | 2 |
| Divisors | 1, 127 | 1, 131 |
| Number of properties | 13 | 12 |
| Additive primes | 17th | |
| Chen primes | 25th | 26th |
| Class 1+ primes | 13th | |
| Cousin primes (1st member) | 12th | |
| Cousin primes (2nd member) | 12th | |
| Cuban primes 1 | 5th | |
| Double mersenne primes | 2nd | |
| Good primes | 13th | |
| Isolated primes | 12th | 13th |
| Long primes | 12th | |
| Lucky primes | 10th | |
| Mersenne primes | 4th | |
| Multiplicative primes | 10th | |
| Palindromic primes | 7th | |
| Pierpont primes of the 2nd kind | 13th | |
| Primes | 31st | 32nd |
| Sexy primes (1st member) | 20th | |
| Solinas primes | 22nd | 23rd |
| Sophie germain primes | 12th | |
| Super primes | 11th | |
| Ulam primes | 8th | |
| Roman numberals | CXXVII | CXXXI |
| Base 2 | 11111112 | 100000112 |
| Base 3 | 112013 | 112123 |
| Base 4 | 13334 | 20034 |
| Base 5 | 10025 | 10115 |
| Base 6 | 3316 | 3356 |
| Base 7 | 2417 | 2457 |
| Base 8 | 1778 | 2038 |
| Base 9 | 1519 | 1559 |
| Base 10 | 12710 | 13110 |
| Base 11 | 10611 | 10a11 |
| Base 12 | a712 | ab12 |
| Base 13 | 9a13 | a113 |
| Base 14 | 9114 | 9514 |
| Base 15 | 8715 | 8b15 |
| Base 16 | 7f16 | 8316 |