Compare 257 vs 347
Property | 257 | 347 |
---|---|---|
Type | prime | prime |
Unique factors | 1 | 1 |
Total factors | 1 | 1 |
Prime factorization | 2571 | 3471 |
Prime factorization | 257 | 347 |
Divisors count | 2 | 2 |
Divisors | 1, 257 | 1, 347 |
Number of properties | 16 | 10 |
Chen primes | 42nd | 51st |
Emirps | 18th | |
Fermat primes | 4th | |
Good primes | 20th | 25th |
Isolated primes | 22nd | |
Left-truncatable primes | 26th | |
Long primes | 21st | |
Pierpont primes | 14th | |
Primes | 55th | 69th |
Prime triplets (1st member) | 20th | |
Proth primes | 10th | |
Pythagorean primes | 25th | |
Quartan primes | 4th | |
Safe primes | 13th | |
Sexy primes (1st member) | 31st | 38th |
Sexy primes (2nd member) | 30th | |
Sexy prime quadrupletss (2nd member) | 5th | |
Sexy prime triplets (1st member) | 16th | 18th |
Sexy prime triplets (2nd member) | 15th | |
Solinas primes | 31st | |
Twin primes (1st member) | 21st | |
Roman numberals | CCLVII | CCCXLVII |
Base 2 | 1000000012 | 1010110112 |
Base 3 | 1001123 | 1102123 |
Base 4 | 100014 | 111234 |
Base 5 | 20125 | 23425 |
Base 6 | 11056 | 13356 |
Base 7 | 5157 | 10047 |
Base 8 | 4018 | 5338 |
Base 9 | 3159 | 4259 |
Base 10 | 25710 | 34710 |
Base 11 | 21411 | 29611 |
Base 12 | 19512 | 24b12 |
Base 13 | 16a13 | 20913 |
Base 14 | 14514 | 1ab14 |
Base 15 | 12215 | 18215 |
Base 16 | 10116 | 15b16 |