Compare 861 vs 863
| Property | 861 | 863 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 3 | 1 |
| Prime factorization | 31 × 71 × 411 | 8631 |
| Prime factorization | 3 × 7 × 41 | 863 |
| Divisors count | 8 | 2 |
| Divisors | 1, 3, 7, 21, 41, 123, 287, 861 | 1, 863 |
| Number of properties | 0 | 12 |
| Additive primes | 79th | |
| Chen primes | 102nd | |
| Class 1+ primes | 18th | |
| Cousin primes (2nd member) | 36th | |
| Happy primes | 32nd | |
| Isolated primes | 83rd | |
| Long primes | 53rd | |
| Pierpont primes of the 2nd kind | 18th | |
| Primes | 150th | |
| Prime triplets (3rd member) | 28th | |
| Safe primes | 23rd | |
| Sexy primes (2nd member) | 67th | |
| Roman numberals | DCCCLXI | DCCCLXIII |
| Base 2 | 11010111012 | 11010111112 |
| Base 3 | 10112203 | 10112223 |
| Base 4 | 311314 | 311334 |
| Base 5 | 114215 | 114235 |
| Base 6 | 35536 | 35556 |
| Base 7 | 23407 | 23427 |
| Base 8 | 15358 | 15378 |
| Base 9 | 11569 | 11589 |
| Base 10 | 86110 | 86310 |
| Base 11 | 71311 | 71511 |
| Base 12 | 5b912 | 5bb12 |
| Base 13 | 51313 | 51513 |
| Base 14 | 45714 | 45914 |
| Base 15 | 3c615 | 3c815 |
| Base 16 | 35d16 | 35f16 |