Compare 991 vs 1117
| Property | 991 | 1117 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 9911 | 11171 |
| Prime factorization | 991 | 1117 |
| Divisors count | 2 | 2 |
| Divisors | 1, 991 | 1, 1117 |
| Number of properties | 10 | 8 |
| Additive primes | 89th | |
| Chen primes | 115th | 125th |
| Emirps | 36th | |
| Isolated primes | 98th | 108th |
| Lucky primes | 42nd | 49th |
| Multiplicative primes | 14th | |
| Primes | 167th | 187th |
| Pythagorean primes | 91st | |
| Sexy primes (1st member) | 74th | 82nd |
| Sexy prime triplets (1st member) | 31st | |
| Solinas primes | 43rd | |
| Super primes | 39th | |
| Ulam primes | 18th | |
| Roman numberals | CMXCI | MCXVII |
| Base 2 | 11110111112 | 100010111012 |
| Base 3 | 11002013 | 11121013 |
| Base 4 | 331334 | 1011314 |
| Base 5 | 124315 | 134325 |
| Base 6 | 43316 | 51016 |
| Base 7 | 26147 | 31547 |
| Base 8 | 17378 | 21358 |
| Base 9 | 13219 | 14719 |
| Base 10 | 99110 | 111710 |
| Base 11 | 82111 | 92611 |
| Base 12 | 6a712 | 79112 |
| Base 13 | 5b313 | 67c13 |
| Base 14 | 50b14 | 59b14 |
| Base 15 | 46115 | 4e715 |
| Base 16 | 3df16 | 45d16 |