Compare 127 vs 138
| Property | 127 | 138 |
|---|---|---|
| Type | prime | composite number |
| Unique factors | 1 | 3 |
| Total factors | 1 | 3 |
| Prime factorization | 1271 | 21 × 31 × 231 |
| Prime factorization | 127 | 2 × 3 × 23 |
| Divisors count | 2 | 8 |
| Divisors | 1, 127 | 1, 2, 3, 6, 23, 46, 69, 138 |
| Number of properties | 13 | 0 |
| Chen primes | 25th | |
| Class 1+ primes | 13th | |
| Cousin primes (1st member) | 12th | |
| Cuban primes 1 | 5th | |
| Double mersenne primes | 2nd | |
| Good primes | 13th | |
| Isolated primes | 12th | |
| Lucky primes | 10th | |
| Mersenne primes | 4th | |
| Pierpont primes of the 2nd kind | 13th | |
| Primes | 31st | |
| Solinas primes | 22nd | |
| Super primes | 11th | |
| Roman numberals | CXXVII | CXXXVIII |
| Base 2 | 11111112 | 100010102 |
| Base 3 | 112013 | 120103 |
| Base 4 | 13334 | 20224 |
| Base 5 | 10025 | 10235 |
| Base 6 | 3316 | 3506 |
| Base 7 | 2417 | 2557 |
| Base 8 | 1778 | 2128 |
| Base 9 | 1519 | 1639 |
| Base 10 | 12710 | 13810 |
| Base 11 | 10611 | 11611 |
| Base 12 | a712 | b612 |
| Base 13 | 9a13 | a813 |
| Base 14 | 9114 | 9c14 |
| Base 15 | 8715 | 9315 |
| Base 16 | 7f16 | 8a16 |