Compare 151 vs 257
| Property | 151 | 257 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 1511 | 2571 |
| Prime factorization | 151 | 257 |
| Divisors count | 2 | 2 |
| Divisors | 1, 151 | 1, 257 |
| Number of properties | 9 | 16 |
| Additive primes | 20th | |
| Centered decagonal primes | 5th | |
| Chen primes | 42nd | |
| Fermat primes | 4th | |
| Good primes | 20th | |
| Isolated primes | 22nd | |
| Long primes | 21st | |
| Lucky primes | 11th | |
| Multiplicative primes | 11th | |
| Palindromic primes | 8th | |
| Pierpont primes | 14th | |
| Primes | 36th | 55th |
| Proth primes | 10th | |
| Pythagorean primes | 25th | |
| Quartan primes | 4th | |
| Sexy primes (1st member) | 21st | 31st |
| Sexy primes (2nd member) | 30th | |
| Sexy prime quadrupletss (2nd member) | 5th | |
| Sexy prime triplets (1st member) | 12th | 16th |
| Sexy prime triplets (2nd member) | 15th | |
| Solinas primes | 31st | |
| Twin primes (2nd member) | 12th | |
| Roman numberals | CLI | CCLVII |
| Base 2 | 100101112 | 1000000012 |
| Base 3 | 121213 | 1001123 |
| Base 4 | 21134 | 100014 |
| Base 5 | 11015 | 20125 |
| Base 6 | 4116 | 11056 |
| Base 7 | 3047 | 5157 |
| Base 8 | 2278 | 4018 |
| Base 9 | 1779 | 3159 |
| Base 10 | 15110 | 25710 |
| Base 11 | 12811 | 21411 |
| Base 12 | 10712 | 19512 |
| Base 13 | b813 | 16a13 |
| Base 14 | ab14 | 14514 |
| Base 15 | a115 | 12215 |
| Base 16 | 9716 | 10116 |