Compare 859 vs 861
| Property | 859 | 861 |
|---|---|---|
| Type | prime | composite number |
| Unique factors | 1 | 3 |
| Total factors | 1 | 3 |
| Prime factorization | 8591 | 31 × 71 × 411 |
| Prime factorization | 859 | 3 × 7 × 41 |
| Divisors count | 2 | 8 |
| Divisors | 1, 859 | 1, 3, 7, 21, 41, 123, 287, 861 |
| Number of properties | 8 | 0 |
| Cousin primes (1st member) | 36th | |
| Harmonic primes | 56th | |
| Primes | 149th | |
| Prime triplets (2nd member) | 28th | |
| Prime triplets (3rd member) | 27th | |
| Sexy primes (2nd member) | 66th | |
| Super primes | 35th | |
| Twin primes (2nd member) | 34th | |
| Roman numberals | DCCCLIX | DCCCLXI |
| Base 2 | 11010110112 | 11010111012 |
| Base 3 | 10112113 | 10112203 |
| Base 4 | 311234 | 311314 |
| Base 5 | 114145 | 114215 |
| Base 6 | 35516 | 35536 |
| Base 7 | 23357 | 23407 |
| Base 8 | 15338 | 15358 |
| Base 9 | 11549 | 11569 |
| Base 10 | 85910 | 86110 |
| Base 11 | 71111 | 71311 |
| Base 12 | 5b712 | 5b912 |
| Base 13 | 51113 | 51313 |
| Base 14 | 45514 | 45714 |
| Base 15 | 3c415 | 3c615 |
| Base 16 | 35b16 | 35d16 |