Compare 1279 vs 1321
| Property | 1279 | 1321 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 12791 | 13211 |
| Prime factorization | 1279 | 1321 |
| Divisors count | 2 | 2 |
| Divisors | 1, 1279 | 1, 1321 |
| Number of properties | 7 | 7 |
| Additive primes | 112th | 118th |
| Cousin primes (1st member) | 46th | |
| Emirps | 60th | 63rd |
| Harmonic primes | 74th | |
| Primes | 207th | 216th |
| Prime triplets (2nd member) | 33rd | |
| Pythagorean primes | 106th | |
| Sexy primes (1st member) | 94th | |
| Solinas primes | 53rd | |
| Twin primes (2nd member) | 43rd | 46th |
| Roman numberals | MCCLXXIX | MCCCXXI |
| Base 2 | 100111111112 | 101001010012 |
| Base 3 | 12021013 | 12102213 |
| Base 4 | 1033334 | 1102214 |
| Base 5 | 201045 | 202415 |
| Base 6 | 55316 | 100416 |
| Base 7 | 35057 | 35657 |
| Base 8 | 23778 | 24518 |
| Base 9 | 16719 | 17279 |
| Base 10 | 127910 | 132110 |
| Base 11 | a6311 | aa111 |
| Base 12 | 8a712 | 92112 |
| Base 13 | 77513 | 7a813 |
| Base 14 | 67514 | 6a514 |
| Base 15 | 5a415 | 5d115 |
| Base 16 | 4ff16 | 52916 |