Compare 157 vs 158
Property | 157 | 158 |
---|---|---|
Type | prime | semiprime |
Unique factors | 1 | 2 |
Total factors | 1 | 2 |
Prime factorization | 1571 | 21 × 791 |
Prime factorization | 157 | 2 × 79 |
Divisors count | 2 | 4 |
Divisors | 1, 157 | 1, 2, 79, 158 |
Number of properties | 11 | 1 |
Additive primes | 21st | |
Chen primes | 30th | |
Emirps | 12th | |
Harmonic primes | 13th | |
Isolated primes | 14th | |
Primes | 37th | |
Pythagorean primes | 17th | |
Semiprimes | 52nd | |
Sexy primes (1st member) | 22nd | |
Sexy primes (2nd member) | 21st | |
Sexy prime triplets (2nd member) | 12th | |
Super primes | 12th | |
Roman numberals | CLVII | CLVIII |
Base 2 | 100111012 | 100111102 |
Base 3 | 122113 | 122123 |
Base 4 | 21314 | 21324 |
Base 5 | 11125 | 11135 |
Base 6 | 4216 | 4226 |
Base 7 | 3137 | 3147 |
Base 8 | 2358 | 2368 |
Base 9 | 1849 | 1859 |
Base 10 | 15710 | 15810 |
Base 11 | 13311 | 13411 |
Base 12 | 11112 | 11212 |
Base 13 | c113 | c213 |
Base 14 | b314 | b414 |
Base 15 | a715 | a815 |
Base 16 | 9d16 | 9e16 |