Compare 1247 vs 1256
| Property | 1247 | 1256 |
|---|---|---|
| Type | semiprime | composite number |
| Unique factors | 2 | 2 |
| Total factors | 2 | 4 |
| Prime factorization | 291 × 431 | 23 × 1571 |
| Prime factorization | 29 × 43 | 2 × 2 × 2 × 157 |
| Divisors count | 4 | 8 |
| Divisors | 1, 29, 43, 1247 | 1, 2, 4, 8, 157, 314, 628, 1256 |
| Number of properties | 1 | 0 |
| Semiprimes | 367th | |
| Roman numberals | MCCXLVII | MCCLVI |
| Base 2 | 100110111112 | 100111010002 |
| Base 3 | 12010123 | 12011123 |
| Base 4 | 1031334 | 1032204 |
| Base 5 | 144425 | 200115 |
| Base 6 | 54356 | 54526 |
| Base 7 | 34317 | 34437 |
| Base 8 | 23378 | 23508 |
| Base 9 | 16359 | 16459 |
| Base 10 | 124710 | 125610 |
| Base 11 | a3411 | a4211 |
| Base 12 | 87b12 | 88812 |
| Base 13 | 74c13 | 75813 |
| Base 14 | 65114 | 65a14 |
| Base 15 | 58215 | 58b15 |
| Base 16 | 4df16 | 4e816 |