Compare 261 vs 271
| Property | 261 | 271 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 2 | 1 |
| Total factors | 3 | 1 |
| Prime factorization | 32 × 291 | 2711 |
| Prime factorization | 3 × 3 × 29 | 271 |
| Divisors count | 6 | 2 |
| Divisors | 1, 3, 9, 29, 87, 261 | 1, 271 |
| Number of properties | 0 | 6 |
| Cuban primes 1 | 6th | |
| Primes | 58th | |
| Sexy primes (1st member) | 33rd | |
| Sexy prime triplets (1st member) | 17th | |
| Solinas primes | 33rd | |
| Twin primes (2nd member) | 18th | |
| Roman numberals | CCLXI | CCLXXI |
| Base 2 | 1000001012 | 1000011112 |
| Base 3 | 1002003 | 1010013 |
| Base 4 | 100114 | 100334 |
| Base 5 | 20215 | 20415 |
| Base 6 | 11136 | 11316 |
| Base 7 | 5227 | 5357 |
| Base 8 | 4058 | 4178 |
| Base 9 | 3209 | 3319 |
| Base 10 | 26110 | 27110 |
| Base 11 | 21811 | 22711 |
| Base 12 | 19912 | 1a712 |
| Base 13 | 17113 | 17b13 |
| Base 14 | 14914 | 15514 |
| Base 15 | 12615 | 13115 |
| Base 16 | 10516 | 10f16 |