Compare 641 vs 661
Property | 641 | 661 |
---|---|---|
Type | prime | prime |
Unique factors | 1 | 1 |
Total factors | 1 | 1 |
Prime factorization | 6411 | 6611 |
Prime factorization | 641 | 661 |
Divisors count | 2 | 2 |
Divisors | 1, 641 | 1, 661 |
Number of properties | 14 | 5 |
Additive primes | 62nd | 65th |
Centered decagonal primes | 8th | |
Chen primes | 81st | |
Good primes | 35th | |
Primes | 116th | 121st |
Prime triplets (1st member) | 24th | |
Proth primes | 14th | |
Pythagorean primes | 55th | 57th |
Quartan primes | 6th | |
Sexy primes (1st member) | 57th | |
Sexy prime quadrupletss (1st member) | 7th | |
Sexy prime triplets (1st member) | 24th | |
Solinas primes | 41st | |
Sophie germain primes | 28th | |
Twin primes (1st member) | 29th | |
Twin primes (2nd member) | 30th | |
Roman numberals | DCXLI | DCLXI |
Base 2 | 10100000012 | 10100101012 |
Base 3 | 2122023 | 2201113 |
Base 4 | 220014 | 221114 |
Base 5 | 100315 | 101215 |
Base 6 | 25456 | 30216 |
Base 7 | 16047 | 16337 |
Base 8 | 12018 | 12258 |
Base 9 | 7829 | 8149 |
Base 10 | 64110 | 66110 |
Base 11 | 53311 | 55111 |
Base 12 | 45512 | 47112 |
Base 13 | 3a413 | 3bb13 |
Base 14 | 33b14 | 35314 |
Base 15 | 2cb15 | 2e115 |
Base 16 | 28116 | 29516 |