Compare 1243 vs 1285
| Property | 1243 | 1285 |
|---|---|---|
| Type | semiprime | semiprime |
| Unique factors | 2 | 2 |
| Total factors | 2 | 2 |
| Prime factorization | 111 × 1131 | 51 × 2571 |
| Prime factorization | 11 × 113 | 5 × 257 |
| Divisors count | 4 | 4 |
| Divisors | 1, 11, 113, 1243 | 1, 5, 257, 1285 |
| Number of properties | 1 | 1 |
| Semiprimes | 366th | 378th |
| Roman numberals | MCCXLIII | MCCLXXXV |
| Base 2 | 100110110112 | 101000001012 |
| Base 3 | 12010013 | 12021213 |
| Base 4 | 1031234 | 1100114 |
| Base 5 | 144335 | 201205 |
| Base 6 | 54316 | 55416 |
| Base 7 | 34247 | 35147 |
| Base 8 | 23338 | 24058 |
| Base 9 | 16319 | 16779 |
| Base 10 | 124310 | 128510 |
| Base 11 | a3011 | a6911 |
| Base 12 | 87712 | 8b112 |
| Base 13 | 74813 | 77b13 |
| Base 14 | 64b14 | 67b14 |
| Base 15 | 57d15 | 5aa15 |
| Base 16 | 4db16 | 50516 |