Compare 661 vs 739
Property | 661 | 739 |
---|---|---|
Type | prime | prime |
Unique factors | 1 | 1 |
Total factors | 1 | 1 |
Prime factorization | 6611 | 7391 |
Prime factorization | 661 | 739 |
Divisors count | 2 | 2 |
Divisors | 1, 661 | 1, 739 |
Number of properties | 5 | 13 |
Additive primes | 65th | 69th |
Centered decagonal primes | 8th | |
Cousin primes (1st member) | 31st | |
Emirps | 24th | |
Good primes | 38th | |
Happy primes | 30th | |
Isolated primes | 72nd | |
Lucky primes | 36th | |
Primes | 121st | 131st |
Pythagorean primes | 57th | |
Right-truncatable primes | 26th | |
Sexy primes (2nd member) | 62nd | |
Sexy prime triplets (3rd member) | 26th | |
Super primes | 32nd | |
Twin primes (2nd member) | 30th | |
Ulam primes | 15th | |
Roman numberals | DCLXI | DCCXXXIX |
Base 2 | 10100101012 | 10111000112 |
Base 3 | 2201113 | 10001013 |
Base 4 | 221114 | 232034 |
Base 5 | 101215 | 104245 |
Base 6 | 30216 | 32316 |
Base 7 | 16337 | 21047 |
Base 8 | 12258 | 13438 |
Base 9 | 8149 | 10119 |
Base 10 | 66110 | 73910 |
Base 11 | 55111 | 61211 |
Base 12 | 47112 | 51712 |
Base 13 | 3bb13 | 44b13 |
Base 14 | 35314 | 3ab14 |
Base 15 | 2e115 | 34415 |
Base 16 | 29516 | 2e316 |