Compare 991 vs 1087
Property | 991 | 1087 |
---|---|---|
Type | prime | prime |
Unique factors | 1 | 1 |
Total factors | 1 | 1 |
Prime factorization | 9911 | 10871 |
Prime factorization | 991 | 1087 |
Divisors count | 2 | 2 |
Divisors | 1, 991 | 1, 1087 |
Number of properties | 10 | 11 |
Additive primes | 89th | |
Chen primes | 115th | |
Cousin primes (1st member) | 43rd | |
Emirps | 36th | |
Good primes | 47th | |
Isolated primes | 98th | 104th |
Kynea primes | 5th | |
Long primes | 67th | |
Lucky primes | 42nd | 47th |
Primes | 167th | 181st |
Prime triplets (1st member) | 31st | |
Sexy primes (1st member) | 74th | 78th |
Solinas primes | 43rd | 50th |
Super primes | 39th | 42nd |
Ulam primes | 18th | |
Roman numberals | CMXCI | MLXXXVII |
Base 2 | 11110111112 | 100001111112 |
Base 3 | 11002013 | 11110213 |
Base 4 | 331334 | 1003334 |
Base 5 | 124315 | 133225 |
Base 6 | 43316 | 50116 |
Base 7 | 26147 | 31127 |
Base 8 | 17378 | 20778 |
Base 9 | 13219 | 14379 |
Base 10 | 99110 | 108710 |
Base 11 | 82111 | 8a911 |
Base 12 | 6a712 | 76712 |
Base 13 | 5b313 | 65813 |
Base 14 | 50b14 | 57914 |
Base 15 | 46115 | 4c715 |
Base 16 | 3df16 | 43f16 |