Compare 1291 vs 1693
| Property | 1291 | 1693 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 12911 | 16931 |
| Prime factorization | 1291 | 1693 |
| Divisors count | 2 | 2 |
| Divisors | 1, 1291 | 1, 1693 |
| Number of properties | 9 | 8 |
| Additive primes | 113th | 140th |
| Chen primes | 137th | |
| Cousin primes (1st member) | 60th | |
| Harmonic primes | 73rd | |
| Isolated primes | 159th | |
| Long primes | 80th | |
| Lucky primes | 54th | 63rd |
| Primes | 210th | 264th |
| Prime triplets (1st member) | 44th | |
| Pythagorean primes | 127th | |
| Sexy primes (1st member) | 91st | 114th |
| Sexy prime triplets (1st member) | 35th | |
| Twin primes (2nd member) | 44th | |
| Roman numberals | MCCXCI | MDCXCIII |
| Base 2 | 101000010112 | 110100111012 |
| Base 3 | 12022113 | 20222013 |
| Base 4 | 1100234 | 1221314 |
| Base 5 | 201315 | 232335 |
| Base 6 | 55516 | 115016 |
| Base 7 | 35237 | 46367 |
| Base 8 | 24138 | 32358 |
| Base 9 | 16849 | 22819 |
| Base 10 | 129110 | 169310 |
| Base 11 | a7411 | 12aa11 |
| Base 12 | 8b712 | b9112 |
| Base 13 | 78413 | a0313 |
| Base 14 | 68314 | 88d14 |
| Base 15 | 5b115 | 77d15 |
| Base 16 | 50b16 | 69d16 |