Compare 251 vs 479
| Property | 251 | 479 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 2511 | 4791 |
| Prime factorization | 251 | 479 |
| Divisors count | 2 | 2 |
| Divisors | 1, 251 | 1, 479 |
| Number of properties | 10 | 6 |
| Chen primes | 41st | 64th |
| Good primes | 19th | |
| Harmonic primes | 20th | 36th |
| Isolated primes | 21st | 45th |
| Primes | 54th | 92nd |
| Safe primes | 17th | |
| Sexy primes (1st member) | 30th | |
| Sexy prime quadrupletss (1st member) | 5th | |
| Sexy prime triplets (1st member) | 15th | |
| Solinas primes | 30th | 36th |
| Sophie germain primes | 18th | |
| Roman numberals | CCLI | CDLXXIX |
| Base 2 | 111110112 | 1110111112 |
| Base 3 | 1000223 | 1222023 |
| Base 4 | 33234 | 131334 |
| Base 5 | 20015 | 34045 |
| Base 6 | 10556 | 21156 |
| Base 7 | 5067 | 12537 |
| Base 8 | 3738 | 7378 |
| Base 9 | 3089 | 5829 |
| Base 10 | 25110 | 47910 |
| Base 11 | 20911 | 3a611 |
| Base 12 | 18b12 | 33b12 |
| Base 13 | 16413 | 2ab13 |
| Base 14 | 13d14 | 26314 |
| Base 15 | 11b15 | 21e15 |
| Base 16 | fb16 | 1df16 |