Compare 347 vs 431
| Property | 347 | 431 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 3471 | 4311 |
| Prime factorization | 347 | 431 |
| Divisors count | 2 | 2 |
| Divisors | 1, 347 | 1, 431 |
| Number of properties | 10 | 10 |
| Chen primes | 51st | 59th |
| Class 1+ primes | 16th | |
| Emirps | 18th | |
| Good primes | 25th | 27th |
| Harmonic primes | 31st | |
| Left-truncatable primes | 26th | |
| Pierpont primes of the 2nd kind | 16th | |
| Primes | 69th | 83rd |
| Prime triplets (1st member) | 20th | |
| Safe primes | 13th | |
| Sexy primes (1st member) | 38th | |
| Sexy prime triplets (1st member) | 18th | |
| Sophie germain primes | 23rd | |
| Super primes | 23rd | |
| Twin primes (1st member) | 21st | 23rd |
| Ulam primes | 12th | |
| Roman numberals | CCCXLVII | CDXXXI |
| Base 2 | 1010110112 | 1101011112 |
| Base 3 | 1102123 | 1202223 |
| Base 4 | 111234 | 122334 |
| Base 5 | 23425 | 32115 |
| Base 6 | 13356 | 15556 |
| Base 7 | 10047 | 11547 |
| Base 8 | 5338 | 6578 |
| Base 9 | 4259 | 5289 |
| Base 10 | 34710 | 43110 |
| Base 11 | 29611 | 36211 |
| Base 12 | 24b12 | 2bb12 |
| Base 13 | 20913 | 27213 |
| Base 14 | 1ab14 | 22b14 |
| Base 15 | 18215 | 1db15 |
| Base 16 | 15b16 | 1af16 |