Compare 845 vs 857
| Property | 845 | 857 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 2 | 1 |
| Total factors | 3 | 1 |
| Prime factorization | 51 × 132 | 8571 |
| Prime factorization | 5 × 13 × 13 | 857 |
| Divisors count | 6 | 2 |
| Divisors | 1, 5, 13, 65, 169, 845 | 1, 857 |
| Number of properties | 0 | 9 |
| Chen primes | 101st | |
| Cousin primes (2nd member) | 35th | |
| Long primes | 52nd | |
| Primes | 148th | |
| Prime triplets (1st member) | 28th | |
| Prime triplets (2nd member) | 27th | |
| Pythagorean primes | 72nd | |
| Sexy primes (1st member) | 67th | |
| Twin primes (1st member) | 34th | |
| Roman numberals | DCCCXLV | DCCCLVII |
| Base 2 | 11010011012 | 11010110012 |
| Base 3 | 10110223 | 10112023 |
| Base 4 | 310314 | 311214 |
| Base 5 | 113405 | 114125 |
| Base 6 | 35256 | 35456 |
| Base 7 | 23157 | 23337 |
| Base 8 | 15158 | 15318 |
| Base 9 | 11389 | 11529 |
| Base 10 | 84510 | 85710 |
| Base 11 | 6a911 | 70a11 |
| Base 12 | 5a512 | 5b512 |
| Base 13 | 50013 | 50c13 |
| Base 14 | 44514 | 45314 |
| Base 15 | 3b515 | 3c215 |
| Base 16 | 34d16 | 35916 |