Compare 290 vs 291
| Property | 290 | 291 |
|---|---|---|
| Type | composite number | semiprime |
| Unique factors | 3 | 2 |
| Total factors | 3 | 2 |
| Prime factorization | 21 × 51 × 291 | 31 × 971 |
| Prime factorization | 2 × 5 × 29 | 3 × 97 |
| Divisors count | 8 | 4 |
| Divisors | 1, 2, 5, 10, 29, 58, 145, 290 | 1, 3, 97, 291 |
| Number of properties | 0 | 1 |
| Semiprimes | 91st | |
| Roman numberals | CCXC | CCXCI |
| Base 2 | 1001000102 | 1001000112 |
| Base 3 | 1012023 | 1012103 |
| Base 4 | 102024 | 102034 |
| Base 5 | 21305 | 21315 |
| Base 6 | 12026 | 12036 |
| Base 7 | 5637 | 5647 |
| Base 8 | 4428 | 4438 |
| Base 9 | 3529 | 3539 |
| Base 10 | 29010 | 29110 |
| Base 11 | 24411 | 24511 |
| Base 12 | 20212 | 20312 |
| Base 13 | 19413 | 19513 |
| Base 14 | 16a14 | 16b14 |
| Base 15 | 14515 | 14615 |
| Base 16 | 12216 | 12316 |