Compare 307 vs 857
| Property | 307 | 857 | 
|---|---|---|
| Type | prime | prime | 
| Unique factors | 1 | 1 | 
| Total factors | 1 | 1 | 
| Prime factorization | 3071 | 8571 | 
| Prime factorization | 307 | 857 | 
| Divisors count | 2 | 2 | 
| Divisors | 1, 307 | 1, 857 | 
| Number of properties | 9 | 9 | 
| Chen primes | 47th | 101st | 
| Cousin primes (1st member) | 18th | |
| Cousin primes (2nd member) | 35th | |
| Good primes | 22nd | |
| Harmonic primes | 25th | |
| Isolated primes | 26th | |
| Long primes | 52nd | |
| Lucky primes | 18th | |
| Primes | 63rd | 148th | 
| Prime triplets (1st member) | 18th | 28th | 
| Prime triplets (2nd member) | 27th | |
| Pythagorean primes | 72nd | |
| Sexy primes (1st member) | 35th | 67th | 
| Twin primes (1st member) | 34th | |
| Roman numberals | CCCVII | DCCCLVII | 
| Base 2 | 1001100112 | 11010110012 | 
| Base 3 | 1021013 | 10112023 | 
| Base 4 | 103034 | 311214 | 
| Base 5 | 22125 | 114125 | 
| Base 6 | 12316 | 35456 | 
| Base 7 | 6167 | 23337 | 
| Base 8 | 4638 | 15318 | 
| Base 9 | 3719 | 11529 | 
| Base 10 | 30710 | 85710 | 
| Base 11 | 25a11 | 70a11 | 
| Base 12 | 21712 | 5b512 | 
| Base 13 | 1a813 | 50c13 | 
| Base 14 | 17d14 | 45314 | 
| Base 15 | 15715 | 3c215 | 
| Base 16 | 13316 | 35916 |