Compare 197 vs 397
| Property | 197 | 397 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 1971 | 3971 |
| Prime factorization | 197 | 397 |
| Divisors count | 2 | 2 |
| Divisors | 1, 197 | 1, 397 |
| Number of properties | 13 | 8 |
| Additive primes | 26th | 45th |
| Centered heptagonal primes | 3rd | |
| Chen primes | 35th | |
| Cousin primes (1st member) | 22nd | |
| Cousin primes (2nd member) | 14th | |
| Cuban primes 1 | 8th | |
| Happy primes | 21st | |
| Isolated primes | 37th | |
| Left-truncatable primes | 20th | 31st |
| Primes | 45th | 78th |
| Prime quadruplets (3rd member) | 4th | |
| Prime triplets (2nd member) | 14th | |
| Prime triplets (3rd member) | 13th | |
| Pythagorean primes | 21st | 37th |
| Sexy primes (2nd member) | 25th | |
| Twin primes (1st member) | 15th | |
| Ulam primes | 9th | |
| Roman numberals | CXCVII | CCCXCVII |
| Base 2 | 110001012 | 1100011012 |
| Base 3 | 210223 | 1122013 |
| Base 4 | 30114 | 120314 |
| Base 5 | 12425 | 30425 |
| Base 6 | 5256 | 15016 |
| Base 7 | 4017 | 11057 |
| Base 8 | 3058 | 6158 |
| Base 9 | 2389 | 4819 |
| Base 10 | 19710 | 39710 |
| Base 11 | 16a11 | 33111 |
| Base 12 | 14512 | 29112 |
| Base 13 | 12213 | 24713 |
| Base 14 | 10114 | 20514 |
| Base 15 | d215 | 1b715 |
| Base 16 | c516 | 18d16 |