Compare 641 vs 647
Property | 641 | 647 |
---|---|---|
Type | prime | prime |
Unique factors | 1 | 1 |
Total factors | 1 | 1 |
Prime factorization | 6411 | 6471 |
Prime factorization | 641 | 647 |
Divisors count | 2 | 2 |
Divisors | 1, 641 | 1, 647 |
Number of properties | 14 | 15 |
Additive primes | 62nd | 64th |
Chen primes | 81st | 82nd |
Class 1+ primes | 17th | |
Cousin primes (2nd member) | 29th | |
Good primes | 35th | |
Isolated primes | 61st | |
Left-truncatable primes | 39th | |
Long primes | 43rd | |
Pierpont primes of the 2nd kind | 17th | |
Primes | 116th | 118th |
Prime triplets (1st member) | 24th | |
Prime triplets (3rd member) | 24th | |
Proth primes | 14th | |
Pythagorean primes | 55th | |
Quartan primes | 6th | |
Sexy primes (1st member) | 57th | 58th |
Sexy primes (2nd member) | 57th | |
Sexy prime quadrupletss (1st member) | 7th | |
Sexy prime quadrupletss (2nd member) | 7th | |
Sexy prime triplets (1st member) | 24th | 25th |
Sexy prime triplets (2nd member) | 24th | |
Solinas primes | 41st | |
Sophie germain primes | 28th | |
Twin primes (1st member) | 29th | |
Roman numberals | DCXLI | DCXLVII |
Base 2 | 10100000012 | 10100001112 |
Base 3 | 2122023 | 2122223 |
Base 4 | 220014 | 220134 |
Base 5 | 100315 | 100425 |
Base 6 | 25456 | 25556 |
Base 7 | 16047 | 16137 |
Base 8 | 12018 | 12078 |
Base 9 | 7829 | 7889 |
Base 10 | 64110 | 64710 |
Base 11 | 53311 | 53911 |
Base 12 | 45512 | 45b12 |
Base 13 | 3a413 | 3aa13 |
Base 14 | 33b14 | 34314 |
Base 15 | 2cb15 | 2d215 |
Base 16 | 28116 | 28716 |