Compare 71 vs 157
| Property | 71 | 157 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 711 | 1571 |
| Prime factorization | 71 | 157 |
| Divisors count | 2 | 2 |
| Divisors | 1, 71 | 1, 157 |
| Number of properties | 13 | 11 |
| Additive primes | 21st | |
| Centered heptagonal primes | 2nd | |
| Chen primes | 18th | 30th |
| Class 1+ primes | 11th | |
| Cousin primes (2nd member) | 7th | |
| Emirps | 5th | 12th |
| Good primes | 10th | |
| Harmonic primes | 13th | |
| Isolated primes | 14th | |
| Multiplicative primes | 8th | |
| Pierpont primes of the 2nd kind | 11th | |
| Primes | 20th | 37th |
| Prime triplets (2nd member) | 8th | |
| Pythagorean primes | 17th | |
| Right-truncatable primes | 11th | |
| Sexy primes (1st member) | 22nd | |
| Sexy primes (2nd member) | 21st | |
| Sexy prime triplets (2nd member) | 12th | |
| Solinas primes | 17th | |
| Super primes | 12th | |
| Twin primes (1st member) | 8th | |
| Roman numberals | LXXI | CLVII |
| Base 2 | 10001112 | 100111012 |
| Base 3 | 21223 | 122113 |
| Base 4 | 10134 | 21314 |
| Base 5 | 2415 | 11125 |
| Base 6 | 1556 | 4216 |
| Base 7 | 1317 | 3137 |
| Base 8 | 1078 | 2358 |
| Base 9 | 789 | 1849 |
| Base 10 | 7110 | 15710 |
| Base 11 | 6511 | 13311 |
| Base 12 | 5b12 | 11112 |
| Base 13 | 5613 | c113 |
| Base 14 | 5114 | b314 |
| Base 15 | 4b15 | a715 |
| Base 16 | 4716 | 9d16 |