Compare 137 vs 157
| Property | 137 | 157 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 1371 | 1571 |
| Prime factorization | 137 | 157 |
| Divisors count | 2 | 2 |
| Divisors | 1, 137 | 1, 157 |
| Number of properties | 8 | 11 |
| Additive primes | 18th | 21st |
| Chen primes | 27th | 30th |
| Emirps | 12th | |
| Harmonic primes | 13th | |
| Isolated primes | 14th | |
| Left-truncatable primes | 17th | |
| Primes | 33rd | 37th |
| Pythagorean primes | 15th | 17th |
| Sexy primes (1st member) | 22nd | |
| Sexy primes (2nd member) | 20th | 21st |
| Sexy prime triplets (2nd member) | 12th | |
| Solinas primes | 24th | |
| Super primes | 12th | |
| Twin primes (1st member) | 11th | |
| Roman numberals | CXXXVII | CLVII |
| Base 2 | 100010012 | 100111012 |
| Base 3 | 120023 | 122113 |
| Base 4 | 20214 | 21314 |
| Base 5 | 10225 | 11125 |
| Base 6 | 3456 | 4216 |
| Base 7 | 2547 | 3137 |
| Base 8 | 2118 | 2358 |
| Base 9 | 1629 | 1849 |
| Base 10 | 13710 | 15710 |
| Base 11 | 11511 | 13311 |
| Base 12 | b512 | 11112 |
| Base 13 | a713 | c113 |
| Base 14 | 9b14 | b314 |
| Base 15 | 9215 | a715 |
| Base 16 | 8916 | 9d16 |