Compare 1851 vs 1855
| Property | 1851 | 1855 |
|---|---|---|
| Type | semiprime | composite number |
| Unique factors | 2 | 3 |
| Total factors | 2 | 3 |
| Prime factorization | 31 × 6171 | 51 × 71 × 531 |
| Prime factorization | 3 × 617 | 5 × 7 × 53 |
| Divisors count | 4 | 8 |
| Divisors | 1, 3, 617, 1851 | 1, 5, 7, 35, 53, 265, 371, 1855 |
| Number of properties | 1 | 0 |
| Semiprimes | 534th | |
| Roman numberals | MDCCCLI | MDCCCLV |
| Base 2 | 111001110112 | 111001111112 |
| Base 3 | 21121203 | 21122013 |
| Base 4 | 1303234 | 1303334 |
| Base 5 | 244015 | 244105 |
| Base 6 | 123236 | 123316 |
| Base 7 | 52537 | 52607 |
| Base 8 | 34738 | 34778 |
| Base 9 | 24769 | 24819 |
| Base 10 | 185110 | 185510 |
| Base 11 | 143311 | 143711 |
| Base 12 | 10a312 | 10a712 |
| Base 13 | ac513 | ac913 |
| Base 14 | 96314 | 96714 |
| Base 15 | 83615 | 83a15 |
| Base 16 | 73b16 | 73f16 |