Compare 851 vs 871
| Property | 851 | 871 |
|---|---|---|
| Type | semiprime | semiprime |
| Unique factors | 2 | 2 |
| Total factors | 2 | 2 |
| Prime factorization | 231 × 371 | 131 × 671 |
| Prime factorization | 23 × 37 | 13 × 67 |
| Divisors count | 4 | 4 |
| Divisors | 1, 23, 37, 851 | 1, 13, 67, 871 |
| Number of properties | 1 | 1 |
| Semiprimes | 257th | 262nd |
| Roman numberals | DCCCLI | DCCCLXXI |
| Base 2 | 11010100112 | 11011001112 |
| Base 3 | 10111123 | 10120213 |
| Base 4 | 311034 | 312134 |
| Base 5 | 114015 | 114415 |
| Base 6 | 35356 | 40116 |
| Base 7 | 23247 | 23537 |
| Base 8 | 15238 | 15478 |
| Base 9 | 11459 | 11679 |
| Base 10 | 85110 | 87110 |
| Base 11 | 70411 | 72211 |
| Base 12 | 5ab12 | 60712 |
| Base 13 | 50613 | 52013 |
| Base 14 | 44b14 | 46314 |
| Base 15 | 3bb15 | 3d115 |
| Base 16 | 35316 | 36716 |