Compare 991 vs 1103
| Property | 991 | 1103 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 9911 | 11031 |
| Prime factorization | 991 | 1103 |
| Divisors count | 2 | 2 |
| Divisors | 1, 991 | 1, 1103 |
| Number of properties | 10 | 13 |
| Additive primes | 89th | 99th |
| Chen primes | 115th | |
| Emirps | 36th | 45th |
| Harmonic primes | 66th | |
| Isolated primes | 98th | 106th |
| Long primes | 70th | |
| Lucky primes | 42nd | |
| Primes | 167th | 185th |
| Sexy primes (1st member) | 74th | 81st |
| Sexy primes (2nd member) | 80th | |
| Sexy prime quadrupletss (3rd member) | 8th | |
| Sexy prime triplets (2nd member) | 30th | |
| Sexy prime triplets (3rd member) | 29th | |
| Solinas primes | 43rd | |
| Sophie germain primes | 42nd | |
| Super primes | 39th | |
| Ulam primes | 18th | 19th |
| Roman numberals | CMXCI | MCIII |
| Base 2 | 11110111112 | 100010011112 |
| Base 3 | 11002013 | 11112123 |
| Base 4 | 331334 | 1010334 |
| Base 5 | 124315 | 134035 |
| Base 6 | 43316 | 50356 |
| Base 7 | 26147 | 31347 |
| Base 8 | 17378 | 21178 |
| Base 9 | 13219 | 14559 |
| Base 10 | 99110 | 110310 |
| Base 11 | 82111 | 91311 |
| Base 12 | 6a712 | 77b12 |
| Base 13 | 5b313 | 66b13 |
| Base 14 | 50b14 | 58b14 |
| Base 15 | 46115 | 4d815 |
| Base 16 | 3df16 | 44f16 |