Compare 1291 vs 1367
| Property | 1291 | 1367 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 12911 | 13671 |
| Prime factorization | 1291 | 1367 |
| Divisors count | 2 | 2 |
| Divisors | 1, 1291 | 1, 1367 |
| Number of properties | 9 | 12 |
| Additive primes | 113th | 121st |
| Chen primes | 137th | 143rd |
| Good primes | 51st | |
| Harmonic primes | 73rd | 75th |
| Isolated primes | 128th | |
| Left-truncatable primes | 57th | |
| Long primes | 80th | 85th |
| Lucky primes | 54th | |
| Primes | 210th | 219th |
| Safe primes | 31st | |
| Sexy primes (1st member) | 91st | 96th |
| Sexy primes (2nd member) | 95th | |
| Sexy prime triplets (1st member) | 35th | |
| Sexy prime triplets (2nd member) | 36th | |
| Twin primes (2nd member) | 44th | |
| Roman numberals | MCCXCI | MCCCLXVII |
| Base 2 | 101000010112 | 101010101112 |
| Base 3 | 12022113 | 12121223 |
| Base 4 | 1100234 | 1111134 |
| Base 5 | 201315 | 204325 |
| Base 6 | 55516 | 101556 |
| Base 7 | 35237 | 36627 |
| Base 8 | 24138 | 25278 |
| Base 9 | 16849 | 17789 |
| Base 10 | 129110 | 136710 |
| Base 11 | a7411 | 103311 |
| Base 12 | 8b712 | 95b12 |
| Base 13 | 78413 | 81213 |
| Base 14 | 68314 | 6d914 |
| Base 15 | 5b115 | 61215 |
| Base 16 | 50b16 | 55716 |