Compare 397 vs 457
| Property | 397 | 457 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 3971 | 4571 |
| Prime factorization | 397 | 457 |
| Divisors count | 2 | 2 |
| Divisors | 1, 397 | 1, 457 |
| Number of properties | 8 | 6 |
| Additive primes | 45th | |
| Cousin primes (1st member) | 22nd | 24th |
| Cuban primes 1 | 8th | |
| Happy primes | 21st | |
| Isolated primes | 37th | 43rd |
| Left-truncatable primes | 31st | |
| Primes | 78th | 88th |
| Prime triplets (1st member) | 21st | |
| Pythagorean primes | 37th | 43rd |
| Sexy primes (1st member) | 45th | |
| Roman numberals | CCCXCVII | CDLVII |
| Base 2 | 1100011012 | 1110010012 |
| Base 3 | 1122013 | 1212213 |
| Base 4 | 120314 | 130214 |
| Base 5 | 30425 | 33125 |
| Base 6 | 15016 | 20416 |
| Base 7 | 11057 | 12227 |
| Base 8 | 6158 | 7118 |
| Base 9 | 4819 | 5579 |
| Base 10 | 39710 | 45710 |
| Base 11 | 33111 | 38611 |
| Base 12 | 29112 | 32112 |
| Base 13 | 24713 | 29213 |
| Base 14 | 20514 | 24914 |
| Base 15 | 1b715 | 20715 |
| Base 16 | 18d16 | 1c916 |