Compare 991 vs 997
Property | 991 | 997 |
---|---|---|
Type | prime | prime |
Unique factors | 1 | 1 |
Total factors | 1 | 1 |
Prime factorization | 9911 | 9971 |
Prime factorization | 991 | 997 |
Divisors count | 2 | 2 |
Divisors | 1, 991 | 1, 997 |
Number of properties | 10 | 6 |
Additive primes | 89th | |
Chen primes | 115th | |
Emirps | 36th | |
Isolated primes | 98th | 99th |
Left-truncatable primes | 54th | |
Lucky primes | 42nd | 43rd |
Primes | 167th | 168th |
Pythagorean primes | 80th | |
Sexy primes (1st member) | 74th | |
Sexy primes (2nd member) | 74th | |
Solinas primes | 43rd | |
Super primes | 39th | |
Ulam primes | 18th | |
Roman numberals | CMXCI | CMXCVII |
Base 2 | 11110111112 | 11111001012 |
Base 3 | 11002013 | 11002213 |
Base 4 | 331334 | 332114 |
Base 5 | 124315 | 124425 |
Base 6 | 43316 | 43416 |
Base 7 | 26147 | 26237 |
Base 8 | 17378 | 17458 |
Base 9 | 13219 | 13279 |
Base 10 | 99110 | 99710 |
Base 11 | 82111 | 82711 |
Base 12 | 6a712 | 6b112 |
Base 13 | 5b313 | 5b913 |
Base 14 | 50b14 | 51314 |
Base 15 | 46115 | 46715 |
Base 16 | 3df16 | 3e516 |