Compare 851 vs 859
| Property | 851 | 859 |
|---|---|---|
| Type | semiprime | prime |
| Unique factors | 2 | 1 |
| Total factors | 2 | 1 |
| Prime factorization | 231 × 371 | 8591 |
| Prime factorization | 23 × 37 | 859 |
| Divisors count | 4 | 2 |
| Divisors | 1, 23, 37, 851 | 1, 859 |
| Number of properties | 1 | 8 |
| Cousin primes (1st member) | 36th | |
| Harmonic primes | 56th | |
| Primes | 149th | |
| Prime triplets (2nd member) | 28th | |
| Prime triplets (3rd member) | 27th | |
| Semiprimes | 257th | |
| Sexy primes (2nd member) | 66th | |
| Super primes | 35th | |
| Twin primes (2nd member) | 34th | |
| Roman numberals | DCCCLI | DCCCLIX |
| Base 2 | 11010100112 | 11010110112 |
| Base 3 | 10111123 | 10112113 |
| Base 4 | 311034 | 311234 |
| Base 5 | 114015 | 114145 |
| Base 6 | 35356 | 35516 |
| Base 7 | 23247 | 23357 |
| Base 8 | 15238 | 15338 |
| Base 9 | 11459 | 11549 |
| Base 10 | 85110 | 85910 |
| Base 11 | 70411 | 71111 |
| Base 12 | 5ab12 | 5b712 |
| Base 13 | 50613 | 51113 |
| Base 14 | 44b14 | 45514 |
| Base 15 | 3bb15 | 3c415 |
| Base 16 | 35316 | 35b16 |