Compare 1321 vs 1523
| Property | 1321 | 1523 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 13211 | 15231 |
| Prime factorization | 1321 | 1523 |
| Divisors count | 2 | 2 |
| Divisors | 1, 1321 | 1, 1523 |
| Number of properties | 7 | 7 |
| Additive primes | 118th | 131st |
| Emirps | 63rd | 74th |
| Harmonic primes | 74th | |
| Isolated primes | 142nd | |
| Left-truncatable primes | 59th | |
| Primes | 216th | 241st |
| Pythagorean primes | 106th | |
| Safe primes | 34th | |
| Sexy primes (1st member) | 94th | |
| Super primes | 53rd | |
| Twin primes (2nd member) | 46th | |
| Roman numberals | MCCCXXI | MDXXIII |
| Base 2 | 101001010012 | 101111100112 |
| Base 3 | 12102213 | 20021023 |
| Base 4 | 1102214 | 1133034 |
| Base 5 | 202415 | 220435 |
| Base 6 | 100416 | 110156 |
| Base 7 | 35657 | 43047 |
| Base 8 | 24518 | 27638 |
| Base 9 | 17279 | 20729 |
| Base 10 | 132110 | 152310 |
| Base 11 | aa111 | 116511 |
| Base 12 | 92112 | a6b12 |
| Base 13 | 7a813 | 90213 |
| Base 14 | 6a514 | 7ab14 |
| Base 15 | 5d115 | 6b815 |
| Base 16 | 52916 | 5f316 |