Compare 255 vs 263
| Property | 255 | 263 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 3 | 1 |
| Prime factorization | 31 × 51 × 171 | 2631 |
| Prime factorization | 3 × 5 × 17 | 263 |
| Divisors count | 8 | 2 |
| Divisors | 1, 3, 5, 15, 17, 51, 85, 255 | 1, 263 |
| Number of properties | 0 | 14 |
| Additive primes | 32nd | |
| Chen primes | 43rd | |
| Happy primes | 14th | |
| Harmonic primes | 21st | |
| Isolated primes | 23rd | |
| Long primes | 22nd | |
| Primes | 56th | |
| Safe primes | 12th | |
| Sexy primes (1st member) | 32nd | |
| Sexy primes (2nd member) | 31st | |
| Sexy prime quadrupletss (3rd member) | 5th | |
| Sexy prime triplets (2nd member) | 16th | |
| Sexy prime triplets (3rd member) | 15th | |
| Solinas primes | 32nd | |
| Roman numberals | CCLV | CCLXIII |
| Base 2 | 111111112 | 1000001112 |
| Base 3 | 1001103 | 1002023 |
| Base 4 | 33334 | 100134 |
| Base 5 | 20105 | 20235 |
| Base 6 | 11036 | 11156 |
| Base 7 | 5137 | 5247 |
| Base 8 | 3778 | 4078 |
| Base 9 | 3139 | 3229 |
| Base 10 | 25510 | 26310 |
| Base 11 | 21211 | 21a11 |
| Base 12 | 19312 | 19b12 |
| Base 13 | 16813 | 17313 |
| Base 14 | 14314 | 14b14 |
| Base 15 | 12015 | 12815 |
| Base 16 | ff16 | 10716 |