Compare 1391 vs 1393
| Property | 1391 | 1393 |
|---|---|---|
| Type | semiprime | semiprime |
| Unique factors | 2 | 2 |
| Total factors | 2 | 2 |
| Prime factorization | 131 × 1071 | 71 × 1991 |
| Prime factorization | 13 × 107 | 7 × 199 |
| Divisors count | 4 | 4 |
| Divisors | 1, 13, 107, 1391 | 1, 7, 199, 1393 |
| Number of properties | 1 | 1 |
| Semiprimes | 412th | 413th |
| Roman numberals | MCCCXCI | MCCCXCIII |
| Base 2 | 101011011112 | 101011100012 |
| Base 3 | 12201123 | 12201213 |
| Base 4 | 1112334 | 1113014 |
| Base 5 | 210315 | 210335 |
| Base 6 | 102356 | 102416 |
| Base 7 | 40257 | 40307 |
| Base 8 | 25578 | 25618 |
| Base 9 | 18159 | 18179 |
| Base 10 | 139110 | 139310 |
| Base 11 | 105511 | 105711 |
| Base 12 | 97b12 | 98112 |
| Base 13 | 83013 | 83213 |
| Base 14 | 71514 | 71714 |
| Base 15 | 62b15 | 62d15 |
| Base 16 | 56f16 | 57116 |