Compare 286 vs 291
| Property | 286 | 291 |
|---|---|---|
| Type | composite number | semiprime |
| Unique factors | 3 | 2 |
| Total factors | 3 | 2 |
| Prime factorization | 21 × 111 × 131 | 31 × 971 |
| Prime factorization | 2 × 11 × 13 | 3 × 97 |
| Divisors count | 8 | 4 |
| Divisors | 1, 2, 11, 13, 22, 26, 143, 286 | 1, 3, 97, 291 |
| Number of properties | 0 | 1 |
| Semiprimes | 91st | |
| Roman numberals | CCLXXXVI | CCXCI |
| Base 2 | 1000111102 | 1001000112 |
| Base 3 | 1011213 | 1012103 |
| Base 4 | 101324 | 102034 |
| Base 5 | 21215 | 21315 |
| Base 6 | 11546 | 12036 |
| Base 7 | 5567 | 5647 |
| Base 8 | 4368 | 4438 |
| Base 9 | 3479 | 3539 |
| Base 10 | 28610 | 29110 |
| Base 11 | 24011 | 24511 |
| Base 12 | 1ba12 | 20312 |
| Base 13 | 19013 | 19513 |
| Base 14 | 16614 | 16b14 |
| Base 15 | 14115 | 14615 |
| Base 16 | 11e16 | 12316 |