Compare 1531 vs 2897
| Property | 1531 | 2897 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 15311 | 28971 |
| Prime factorization | 1531 | 2897 |
| Divisors count | 2 | 2 |
| Divisors | 1, 1531 | 1, 2897 |
| Number of properties | 5 | 9 |
| Centered decagonal primes | 13th | |
| Chen primes | 249th | |
| Isolated primes | 143rd | 260th |
| Long primes | 91st | 170th |
| Primes | 242nd | 419th |
| Pythagorean primes | 206th | |
| Sexy primes (1st member) | 166th | |
| Sexy prime triplets (1st member) | 61st | |
| Super primes | 81st | |
| Ulam primes | 22nd | 32nd |
| Roman numberals | MDXXXI | MMDCCCXCVII |
| Base 2 | 101111110112 | 1011010100012 |
| Base 3 | 20022013 | 102220223 |
| Base 4 | 1133234 | 2311014 |
| Base 5 | 221115 | 430425 |
| Base 6 | 110316 | 212256 |
| Base 7 | 43157 | 113067 |
| Base 8 | 27738 | 55218 |
| Base 9 | 20819 | 38689 |
| Base 10 | 153110 | 289710 |
| Base 11 | 117211 | 21a411 |
| Base 12 | a7712 | 181512 |
| Base 13 | 90a13 | 141b13 |
| Base 14 | 7b514 | 10ad14 |
| Base 15 | 6c115 | cd215 |
| Base 16 | 5fb16 | b5116 |