Compare 1261 vs 1271
| Property | 1261 | 1271 |
|---|---|---|
| Type | semiprime | semiprime |
| Unique factors | 2 | 2 |
| Total factors | 2 | 2 |
| Prime factorization | 131 × 971 | 311 × 411 |
| Prime factorization | 13 × 97 | 31 × 41 |
| Divisors count | 4 | 4 |
| Divisors | 1, 13, 97, 1261 | 1, 31, 41, 1271 |
| Number of properties | 1 | 1 |
| Semiprimes | 371st | 375th |
| Roman numberals | MCCLXI | MCCLXXI |
| Base 2 | 100111011012 | 100111101112 |
| Base 3 | 12012013 | 12020023 |
| Base 4 | 1032314 | 1033134 |
| Base 5 | 200215 | 200415 |
| Base 6 | 55016 | 55156 |
| Base 7 | 34517 | 34647 |
| Base 8 | 23558 | 23678 |
| Base 9 | 16519 | 16629 |
| Base 10 | 126110 | 127110 |
| Base 11 | a4711 | a5611 |
| Base 12 | 89112 | 89b12 |
| Base 13 | 76013 | 76a13 |
| Base 14 | 66114 | 66b14 |
| Base 15 | 59115 | 59b15 |
| Base 16 | 4ed16 | 4f716 |