Compare 1279 vs 1281
| Property | 1279 | 1281 |
|---|---|---|
| Type | prime | composite number |
| Unique factors | 1 | 3 |
| Total factors | 1 | 3 |
| Prime factorization | 12791 | 31 × 71 × 611 |
| Prime factorization | 1279 | 3 × 7 × 61 |
| Divisors count | 2 | 8 |
| Divisors | 1, 1279 | 1, 3, 7, 21, 61, 183, 427, 1281 |
| Number of properties | 7 | 0 |
| Additive primes | 112th | |
| Cousin primes (1st member) | 46th | |
| Emirps | 60th | |
| Primes | 207th | |
| Prime triplets (2nd member) | 33rd | |
| Solinas primes | 53rd | |
| Twin primes (2nd member) | 43rd | |
| Roman numberals | MCCLXXIX | MCCLXXXI |
| Base 2 | 100111111112 | 101000000012 |
| Base 3 | 12021013 | 12021103 |
| Base 4 | 1033334 | 1100014 |
| Base 5 | 201045 | 201115 |
| Base 6 | 55316 | 55336 |
| Base 7 | 35057 | 35107 |
| Base 8 | 23778 | 24018 |
| Base 9 | 16719 | 16739 |
| Base 10 | 127910 | 128110 |
| Base 11 | a6311 | a6511 |
| Base 12 | 8a712 | 8a912 |
| Base 13 | 77513 | 77713 |
| Base 14 | 67514 | 67714 |
| Base 15 | 5a415 | 5a615 |
| Base 16 | 4ff16 | 50116 |