Compare 131 vs 151
| Property | 131 | 151 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 1311 | 1511 |
| Prime factorization | 131 | 151 |
| Divisors count | 2 | 2 |
| Divisors | 1, 131 | 1, 151 |
| Number of properties | 12 | 9 |
| Additive primes | 17th | 20th |
| Centered decagonal primes | 5th | |
| Chen primes | 26th | |
| Cousin primes (2nd member) | 12th | |
| Isolated primes | 13th | |
| Long primes | 12th | |
| Lucky primes | 11th | |
| Multiplicative primes | 10th | 11th |
| Palindromic primes | 7th | 8th |
| Primes | 32nd | 36th |
| Sexy primes (1st member) | 20th | 21st |
| Sexy prime triplets (1st member) | 12th | |
| Solinas primes | 23rd | |
| Sophie germain primes | 12th | |
| Twin primes (2nd member) | 12th | |
| Ulam primes | 8th | |
| Roman numberals | CXXXI | CLI |
| Base 2 | 100000112 | 100101112 |
| Base 3 | 112123 | 121213 |
| Base 4 | 20034 | 21134 |
| Base 5 | 10115 | 11015 |
| Base 6 | 3356 | 4116 |
| Base 7 | 2457 | 3047 |
| Base 8 | 2038 | 2278 |
| Base 9 | 1559 | 1779 |
| Base 10 | 13110 | 15110 |
| Base 11 | 10a11 | 12811 |
| Base 12 | ab12 | 10712 |
| Base 13 | a113 | b813 |
| Base 14 | 9514 | ab14 |
| Base 15 | 8b15 | a115 |
| Base 16 | 8316 | 9716 |