Compare 261 vs 265
| Property | 261 | 265 |
|---|---|---|
| Type | composite number | semiprime |
| Unique factors | 2 | 2 |
| Total factors | 3 | 2 |
| Prime factorization | 32 × 291 | 51 × 531 |
| Prime factorization | 3 × 3 × 29 | 5 × 53 |
| Divisors count | 6 | 4 |
| Divisors | 1, 3, 9, 29, 87, 261 | 1, 5, 53, 265 |
| Number of properties | 0 | 1 |
| Semiprimes | 85th | |
| Roman numberals | CCLXI | CCLXV |
| Base 2 | 1000001012 | 1000010012 |
| Base 3 | 1002003 | 1002113 |
| Base 4 | 100114 | 100214 |
| Base 5 | 20215 | 20305 |
| Base 6 | 11136 | 11216 |
| Base 7 | 5227 | 5267 |
| Base 8 | 4058 | 4118 |
| Base 9 | 3209 | 3249 |
| Base 10 | 26110 | 26510 |
| Base 11 | 21811 | 22111 |
| Base 12 | 19912 | 1a112 |
| Base 13 | 17113 | 17513 |
| Base 14 | 14914 | 14d14 |
| Base 15 | 12615 | 12a15 |
| Base 16 | 10516 | 10916 |