Compare 861 vs 871
| Property | 861 | 871 |
|---|---|---|
| Type | composite number | semiprime |
| Unique factors | 3 | 2 |
| Total factors | 3 | 2 |
| Prime factorization | 31 × 71 × 411 | 131 × 671 |
| Prime factorization | 3 × 7 × 41 | 13 × 67 |
| Divisors count | 8 | 4 |
| Divisors | 1, 3, 7, 21, 41, 123, 287, 861 | 1, 13, 67, 871 |
| Number of properties | 0 | 1 |
| Semiprimes | 262nd | |
| Roman numberals | DCCCLXI | DCCCLXXI |
| Base 2 | 11010111012 | 11011001112 |
| Base 3 | 10112203 | 10120213 |
| Base 4 | 311314 | 312134 |
| Base 5 | 114215 | 114415 |
| Base 6 | 35536 | 40116 |
| Base 7 | 23407 | 23537 |
| Base 8 | 15358 | 15478 |
| Base 9 | 11569 | 11679 |
| Base 10 | 86110 | 87110 |
| Base 11 | 71311 | 72211 |
| Base 12 | 5b912 | 60712 |
| Base 13 | 51313 | 52013 |
| Base 14 | 45714 | 46314 |
| Base 15 | 3c615 | 3d115 |
| Base 16 | 35d16 | 36716 |