Compare 241 vs 991
| Property | 241 | 991 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 2411 | 9911 |
| Prime factorization | 241 | 991 |
| Divisors count | 2 | 2 |
| Divisors | 1, 241 | 1, 991 |
| Number of properties | 10 | 10 |
| Additive primes | 31st | 89th |
| Chen primes | 115th | |
| Emirps | 36th | |
| Harmonic primes | 19th | |
| Isolated primes | 98th | |
| Lucky primes | 16th | 42nd |
| Primes | 53rd | 167th |
| Proth primes | 9th | |
| Pythagorean primes | 24th | |
| Sexy primes (1st member) | 74th | |
| Solinas primes | 29th | 43rd |
| Super primes | 16th | 39th |
| Twin primes (2nd member) | 17th | |
| Ulam primes | 10th | 18th |
| Roman numberals | CCXLI | CMXCI |
| Base 2 | 111100012 | 11110111112 |
| Base 3 | 222213 | 11002013 |
| Base 4 | 33014 | 331334 |
| Base 5 | 14315 | 124315 |
| Base 6 | 10416 | 43316 |
| Base 7 | 4637 | 26147 |
| Base 8 | 3618 | 17378 |
| Base 9 | 2879 | 13219 |
| Base 10 | 24110 | 99110 |
| Base 11 | 1aa11 | 82111 |
| Base 12 | 18112 | 6a712 |
| Base 13 | 15713 | 5b313 |
| Base 14 | 13314 | 50b14 |
| Base 15 | 11115 | 46115 |
| Base 16 | f116 | 3df16 |