Compare 147 vs 157
| Property | 147 | 157 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 2 | 1 |
| Total factors | 3 | 1 |
| Prime factorization | 31 × 72 | 1571 |
| Prime factorization | 3 × 7 × 7 | 157 |
| Divisors count | 6 | 2 |
| Divisors | 1, 3, 7, 21, 49, 147 | 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 | CXLVII | CLVII |
| Base 2 | 100100112 | 100111012 |
| Base 3 | 121103 | 122113 |
| Base 4 | 21034 | 21314 |
| Base 5 | 10425 | 11125 |
| Base 6 | 4036 | 4216 |
| Base 7 | 3007 | 3137 |
| Base 8 | 2238 | 2358 |
| Base 9 | 1739 | 1849 |
| Base 10 | 14710 | 15710 |
| Base 11 | 12411 | 13311 |
| Base 12 | 10312 | 11112 |
| Base 13 | b413 | c113 |
| Base 14 | a714 | b314 |
| Base 15 | 9c15 | a715 |
| Base 16 | 9316 | 9d16 |