Compare 845 vs 851
| Property | 845 | 851 |
|---|---|---|
| Type | composite number | semiprime |
| Unique factors | 2 | 2 |
| Total factors | 3 | 2 |
| Prime factorization | 51 × 132 | 231 × 371 |
| Prime factorization | 5 × 13 × 13 | 23 × 37 |
| Divisors count | 6 | 4 |
| Divisors | 1, 5, 13, 65, 169, 845 | 1, 23, 37, 851 |
| Number of properties | 0 | 1 |
| Semiprimes | 257th | |
| Roman numberals | DCCCXLV | DCCCLI |
| Base 2 | 11010011012 | 11010100112 |
| Base 3 | 10110223 | 10111123 |
| Base 4 | 310314 | 311034 |
| Base 5 | 113405 | 114015 |
| Base 6 | 35256 | 35356 |
| Base 7 | 23157 | 23247 |
| Base 8 | 15158 | 15238 |
| Base 9 | 11389 | 11459 |
| Base 10 | 84510 | 85110 |
| Base 11 | 6a911 | 70411 |
| Base 12 | 5a512 | 5ab12 |
| Base 13 | 50013 | 50613 |
| Base 14 | 44514 | 44b14 |
| Base 15 | 3b515 | 3bb15 |
| Base 16 | 34d16 | 35316 |