Compare 127 vs 157
| Property | 127 | 157 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 1271 | 1571 |
| Prime factorization | 127 | 157 |
| Divisors count | 2 | 2 |
| Divisors | 1, 127 | 1, 157 |
| Number of properties | 13 | 11 |
| Additive primes | 21st | |
| Chen primes | 25th | 30th |
| Class 1+ primes | 13th | |
| Cousin primes (1st member) | 12th | |
| Cuban primes 1 | 5th | |
| Double mersenne primes | 2nd | |
| Emirps | 12th | |
| Good primes | 13th | |
| Harmonic primes | 13th | |
| Isolated primes | 12th | 14th |
| Lucky primes | 10th | |
| Mersenne primes | 4th | |
| Pierpont primes of the 2nd kind | 13th | |
| Primes | 31st | 37th |
| Pythagorean primes | 17th | |
| Sexy primes (1st member) | 22nd | |
| Sexy primes (2nd member) | 21st | |
| Sexy prime triplets (2nd member) | 12th | |
| Solinas primes | 22nd | |
| Super primes | 11th | 12th |
| Roman numberals | CXXVII | CLVII |
| Base 2 | 11111112 | 100111012 |
| Base 3 | 112013 | 122113 |
| Base 4 | 13334 | 21314 |
| Base 5 | 10025 | 11125 |
| Base 6 | 3316 | 4216 |
| Base 7 | 2417 | 3137 |
| Base 8 | 1778 | 2358 |
| Base 9 | 1519 | 1849 |
| Base 10 | 12710 | 15710 |
| Base 11 | 10611 | 13311 |
| Base 12 | a712 | 11112 |
| Base 13 | 9a13 | c113 |
| Base 14 | 9114 | b314 |
| Base 15 | 8715 | a715 |
| Base 16 | 7f16 | 9d16 |