Compare 397 vs 503
| Property | 397 | 503 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 3971 | 5031 |
| Prime factorization | 397 | 503 |
| Divisors count | 2 | 2 |
| Divisors | 1, 397 | 1, 503 |
| Number of properties | 8 | 9 |
| Additive primes | 45th | |
| Chen primes | 68th | |
| Cousin primes (1st member) | 22nd | |
| Cousin primes (2nd member) | 27th | |
| Cuban primes 1 | 8th | |
| Happy primes | 21st | |
| Harmonic primes | 40th | |
| Isolated primes | 37th | 49th |
| Left-truncatable primes | 31st | |
| Long primes | 36th | |
| Primes | 78th | 96th |
| Pythagorean primes | 37th | |
| Safe primes | 18th | |
| Sexy primes (1st member) | 47th | |
| Solinas primes | 37th | |
| Roman numberals | CCCXCVII | DIII |
| Base 2 | 1100011012 | 1111101112 |
| Base 3 | 1122013 | 2001223 |
| Base 4 | 120314 | 133134 |
| Base 5 | 30425 | 40035 |
| Base 6 | 15016 | 21556 |
| Base 7 | 11057 | 13167 |
| Base 8 | 6158 | 7678 |
| Base 9 | 4819 | 6189 |
| Base 10 | 39710 | 50310 |
| Base 11 | 33111 | 41811 |
| Base 12 | 29112 | 35b12 |
| Base 13 | 24713 | 2c913 |
| Base 14 | 20514 | 27d14 |
| Base 15 | 1b715 | 23815 |
| Base 16 | 18d16 | 1f716 |