Compare 157 vs 223
| Property | 157 | 223 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 1571 | 2231 |
| Prime factorization | 157 | 223 |
| Divisors count | 2 | 2 |
| Divisors | 1, 157 | 1, 223 |
| Number of properties | 11 | 13 |
| Additive primes | 21st | 28th |
| Carol primes | 3rd | |
| Chen primes | 30th | |
| Cousin primes (1st member) | 15th | |
| Emirps | 12th | |
| Good primes | 17th | |
| Harmonic primes | 13th | 17th |
| Isolated primes | 14th | 19th |
| Left-truncatable primes | 21st | |
| Long primes | 18th | |
| Lucky primes | 15th | |
| Primes | 37th | 48th |
| Prime triplets (1st member) | 15th | |
| Pythagorean primes | 17th | |
| Sexy primes (1st member) | 22nd | 27th |
| Sexy primes (2nd member) | 21st | |
| Sexy prime triplets (2nd member) | 12th | |
| Solinas primes | 27th | |
| Super primes | 12th | |
| Roman numberals | CLVII | CCXXIII |
| Base 2 | 100111012 | 110111112 |
| Base 3 | 122113 | 220213 |
| Base 4 | 21314 | 31334 |
| Base 5 | 11125 | 13435 |
| Base 6 | 4216 | 10116 |
| Base 7 | 3137 | 4367 |
| Base 8 | 2358 | 3378 |
| Base 9 | 1849 | 2679 |
| Base 10 | 15710 | 22310 |
| Base 11 | 13311 | 19311 |
| Base 12 | 11112 | 16712 |
| Base 13 | c113 | 14213 |
| Base 14 | b314 | 11d14 |
| Base 15 | a715 | ed15 |
| Base 16 | 9d16 | df16 |