Compare 1405 vs 1415
| Property | 1405 | 1415 |
|---|---|---|
| Type | semiprime | semiprime |
| Unique factors | 2 | 2 |
| Total factors | 2 | 2 |
| Prime factorization | 51 × 2811 | 51 × 2831 |
| Prime factorization | 5 × 281 | 5 × 283 |
| Divisors count | 4 | 4 |
| Divisors | 1, 5, 281, 1405 | 1, 5, 283, 1415 |
| Number of properties | 1 | 1 |
| Semiprimes | 418th | 420th |
| Roman numberals | MCDV | MCDXV |
| Base 2 | 101011111012 | 101100001112 |
| Base 3 | 12210013 | 12211023 |
| Base 4 | 1113314 | 1120134 |
| Base 5 | 211105 | 211305 |
| Base 6 | 103016 | 103156 |
| Base 7 | 40457 | 40617 |
| Base 8 | 25758 | 26078 |
| Base 9 | 18319 | 18429 |
| Base 10 | 140510 | 141510 |
| Base 11 | 106811 | 107711 |
| Base 12 | 99112 | 99b12 |
| Base 13 | 84113 | 84b13 |
| Base 14 | 72514 | 73114 |
| Base 15 | 63a15 | 64515 |
| Base 16 | 57d16 | 58716 |