Compare 1321 vs 1323
| Property | 1321 | 1323 |
|---|---|---|
| Type | prime | composite number |
| Unique factors | 1 | 2 |
| Total factors | 1 | 5 |
| Prime factorization | 13211 | 33 × 72 |
| Prime factorization | 1321 | 3 × 3 × 3 × 7 × 7 |
| Divisors count | 2 | 12 |
| Divisors | 1, 1321 | 1, 3, 7, 9, 21, 27, 49, 63, 147, 189, 441, 1323 |
| Number of properties | 7 | 0 |
| Additive primes | 118th | |
| Emirps | 63rd | |
| Harmonic primes | 74th | |
| Primes | 216th | |
| Pythagorean primes | 106th | |
| Sexy primes (1st member) | 94th | |
| Twin primes (2nd member) | 46th | |
| Roman numberals | MCCCXXI | MCCCXXIII |
| Base 2 | 101001010012 | 101001010112 |
| Base 3 | 12102213 | 12110003 |
| Base 4 | 1102214 | 1102234 |
| Base 5 | 202415 | 202435 |
| Base 6 | 100416 | 100436 |
| Base 7 | 35657 | 36007 |
| Base 8 | 24518 | 24538 |
| Base 9 | 17279 | 17309 |
| Base 10 | 132110 | 132310 |
| Base 11 | aa111 | aa311 |
| Base 12 | 92112 | 92312 |
| Base 13 | 7a813 | 7aa13 |
| Base 14 | 6a514 | 6a714 |
| Base 15 | 5d115 | 5d315 |
| Base 16 | 52916 | 52b16 |