Compare 991 vs 1279
Property | 991 | 1279 |
---|---|---|
Type | prime | prime |
Unique factors | 1 | 1 |
Total factors | 1 | 1 |
Prime factorization | 9911 | 12791 |
Prime factorization | 991 | 1279 |
Divisors count | 2 | 2 |
Divisors | 1, 991 | 1, 1279 |
Number of properties | 10 | 7 |
Additive primes | 89th | 112th |
Chen primes | 115th | |
Cousin primes (1st member) | 46th | |
Emirps | 36th | 60th |
Isolated primes | 98th | |
Lucky primes | 42nd | |
Primes | 167th | 207th |
Prime triplets (2nd member) | 33rd | |
Sexy primes (1st member) | 74th | |
Solinas primes | 43rd | 53rd |
Super primes | 39th | |
Twin primes (2nd member) | 43rd | |
Ulam primes | 18th | |
Roman numberals | CMXCI | MCCLXXIX |
Base 2 | 11110111112 | 100111111112 |
Base 3 | 11002013 | 12021013 |
Base 4 | 331334 | 1033334 |
Base 5 | 124315 | 201045 |
Base 6 | 43316 | 55316 |
Base 7 | 26147 | 35057 |
Base 8 | 17378 | 23778 |
Base 9 | 13219 | 16719 |
Base 10 | 99110 | 127910 |
Base 11 | 82111 | a6311 |
Base 12 | 6a712 | 8a712 |
Base 13 | 5b313 | 77513 |
Base 14 | 50b14 | 67514 |
Base 15 | 46115 | 5a415 |
Base 16 | 3df16 | 4ff16 |