Compare 839 vs 857
| Property | 839 | 857 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 8391 | 8571 |
| Prime factorization | 839 | 857 |
| Divisors count | 2 | 2 |
| Divisors | 1, 839 | 1, 857 |
| Number of properties | 4 | 9 |
| Chen primes | 100th | 101st |
| Cousin primes (2nd member) | 35th | |
| Isolated primes | 81st | |
| Long primes | 52nd | |
| Primes | 146th | 148th |
| Prime triplets (1st member) | 28th | |
| Prime triplets (2nd member) | 27th | |
| Pythagorean primes | 72nd | |
| Safe primes | 22nd | |
| Sexy primes (1st member) | 67th | |
| Twin primes (1st member) | 34th | |
| Roman numberals | DCCCXXXIX | DCCCLVII |
| Base 2 | 11010001112 | 11010110012 |
| Base 3 | 10110023 | 10112023 |
| Base 4 | 310134 | 311214 |
| Base 5 | 113245 | 114125 |
| Base 6 | 35156 | 35456 |
| Base 7 | 23067 | 23337 |
| Base 8 | 15078 | 15318 |
| Base 9 | 11329 | 11529 |
| Base 10 | 83910 | 85710 |
| Base 11 | 6a311 | 70a11 |
| Base 12 | 59b12 | 5b512 |
| Base 13 | 4c713 | 50c13 |
| Base 14 | 43d14 | 45314 |
| Base 15 | 3ae15 | 3c215 |
| Base 16 | 34716 | 35916 |