Compare 1291 vs 1319
| Property | 1291 | 1319 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 12911 | 13191 |
| Prime factorization | 1291 | 1319 |
| Divisors count | 2 | 2 |
| Divisors | 1, 1291 | 1, 1319 |
| Number of properties | 9 | 4 |
| Additive primes | 113th | |
| Chen primes | 137th | 140th |
| Harmonic primes | 73rd | |
| Long primes | 80th | |
| Lucky primes | 54th | |
| Primes | 210th | 215th |
| Safe primes | 30th | |
| Sexy primes (1st member) | 91st | |
| Sexy prime triplets (1st member) | 35th | |
| Twin primes (1st member) | 46th | |
| Twin primes (2nd member) | 44th | |
| Roman numberals | MCCXCI | MCCCXIX |
| Base 2 | 101000010112 | 101001001112 |
| Base 3 | 12022113 | 12102123 |
| Base 4 | 1100234 | 1102134 |
| Base 5 | 201315 | 202345 |
| Base 6 | 55516 | 100356 |
| Base 7 | 35237 | 35637 |
| Base 8 | 24138 | 24478 |
| Base 9 | 16849 | 17259 |
| Base 10 | 129110 | 131910 |
| Base 11 | a7411 | a9a11 |
| Base 12 | 8b712 | 91b12 |
| Base 13 | 78413 | 7a613 |
| Base 14 | 68314 | 6a314 |
| Base 15 | 5b115 | 5ce15 |
| Base 16 | 50b16 | 52716 |