Compare 156 vs 157
| Property | 156 | 157 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 4 | 1 |
| Prime factorization | 22 × 31 × 131 | 1571 |
| Prime factorization | 2 × 2 × 3 × 13 | 157 |
| Divisors count | 12 | 2 |
| Divisors | 1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156 | 1, 157 |
| Number of properties | 0 | 11 |
| Additive primes | 21st | |
| Chen primes | 30th | |
| Emirps | 12th | |
| Harmonic primes | 13th | |
| Isolated primes | 14th | |
| Primes | 37th | |
| Pythagorean primes | 17th | |
| Sexy primes (1st member) | 22nd | |
| Sexy primes (2nd member) | 21st | |
| Sexy prime triplets (2nd member) | 12th | |
| Super primes | 12th | |
| Roman numberals | CLVI | CLVII |
| Base 2 | 100111002 | 100111012 |
| Base 3 | 122103 | 122113 |
| Base 4 | 21304 | 21314 |
| Base 5 | 11115 | 11125 |
| Base 6 | 4206 | 4216 |
| Base 7 | 3127 | 3137 |
| Base 8 | 2348 | 2358 |
| Base 9 | 1839 | 1849 |
| Base 10 | 15610 | 15710 |
| Base 11 | 13211 | 13311 |
| Base 12 | 11012 | 11112 |
| Base 13 | c013 | c113 |
| Base 14 | b214 | b314 |
| Base 15 | a615 | a715 |
| Base 16 | 9c16 | 9d16 |