Compare 991 vs 1063
| Property | 991 | 1063 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 9911 | 10631 |
| Prime factorization | 991 | 1063 |
| Divisors count | 2 | 2 |
| Divisors | 1, 991 | 1, 1063 |
| Number of properties | 10 | 5 |
| Additive primes | 89th | |
| Chen primes | 115th | |
| Emirps | 36th | |
| Isolated primes | 98th | |
| Long primes | 65th | |
| Lucky primes | 42nd | |
| Primes | 167th | 179th |
| Sexy primes (1st member) | 74th | 77th |
| Solinas primes | 43rd | |
| Super primes | 39th | 41st |
| Twin primes (2nd member) | 39th | |
| Ulam primes | 18th | |
| Roman numberals | CMXCI | MLXIII |
| Base 2 | 11110111112 | 100001001112 |
| Base 3 | 11002013 | 11101013 |
| Base 4 | 331334 | 1002134 |
| Base 5 | 124315 | 132235 |
| Base 6 | 43316 | 45316 |
| Base 7 | 26147 | 30467 |
| Base 8 | 17378 | 20478 |
| Base 9 | 13219 | 14119 |
| Base 10 | 99110 | 106310 |
| Base 11 | 82111 | 88711 |
| Base 12 | 6a712 | 74712 |
| Base 13 | 5b313 | 63a13 |
| Base 14 | 50b14 | 55d14 |
| Base 15 | 46115 | 4ad15 |
| Base 16 | 3df16 | 42716 |