Compare 1261 vs 1266
| Property | 1261 | 1266 |
|---|---|---|
| Type | semiprime | composite number |
| Unique factors | 2 | 3 |
| Total factors | 2 | 3 |
| Prime factorization | 131 × 971 | 21 × 31 × 2111 |
| Prime factorization | 13 × 97 | 2 × 3 × 211 |
| Divisors count | 4 | 8 |
| Divisors | 1, 13, 97, 1261 | 1, 2, 3, 6, 211, 422, 633, 1266 |
| Number of properties | 1 | 0 |
| Semiprimes | 371st | |
| Roman numberals | MCCLXI | MCCLXVI |
| Base 2 | 100111011012 | 100111100102 |
| Base 3 | 12012013 | 12012203 |
| Base 4 | 1032314 | 1033024 |
| Base 5 | 200215 | 200315 |
| Base 6 | 55016 | 55106 |
| Base 7 | 34517 | 34567 |
| Base 8 | 23558 | 23628 |
| Base 9 | 16519 | 16569 |
| Base 10 | 126110 | 126610 |
| Base 11 | a4711 | a5111 |
| Base 12 | 89112 | 89612 |
| Base 13 | 76013 | 76513 |
| Base 14 | 66114 | 66614 |
| Base 15 | 59115 | 59615 |
| Base 16 | 4ed16 | 4f216 |