Compare 127 vs 401
| Property | 127 | 401 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 1271 | 4011 |
| Prime factorization | 127 | 401 |
| Divisors count | 2 | 2 |
| Divisors | 1, 127 | 1, 401 |
| Number of properties | 13 | 7 |
| Additive primes | 46th | |
| Chen primes | 25th | 56th |
| Class 1+ primes | 13th | |
| Cousin primes (1st member) | 12th | |
| Cousin primes (2nd member) | 22nd | |
| Cuban primes 1 | 5th | |
| Double mersenne primes | 2nd | |
| Good primes | 13th | |
| Isolated primes | 12th | 38th |
| Lucky primes | 10th | |
| Mersenne primes | 4th | |
| Pierpont primes of the 2nd kind | 13th | |
| Primes | 31st | 79th |
| Pythagorean primes | 38th | |
| Solinas primes | 22nd | |
| Super primes | 11th | 22nd |
| Roman numberals | CXXVII | CDI |
| Base 2 | 11111112 | 1100100012 |
| Base 3 | 112013 | 1122123 |
| Base 4 | 13334 | 121014 |
| Base 5 | 10025 | 31015 |
| Base 6 | 3316 | 15056 |
| Base 7 | 2417 | 11127 |
| Base 8 | 1778 | 6218 |
| Base 9 | 1519 | 4859 |
| Base 10 | 12710 | 40110 |
| Base 11 | 10611 | 33511 |
| Base 12 | a712 | 29512 |
| Base 13 | 9a13 | 24b13 |
| Base 14 | 9114 | 20914 |
| Base 15 | 8715 | 1bb15 |
| Base 16 | 7f16 | 19116 |