Compare 197 vs 431
| Property | 197 | 431 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 1971 | 4311 |
| Prime factorization | 197 | 431 |
| Divisors count | 2 | 2 |
| Divisors | 1, 197 | 1, 431 |
| Number of properties | 13 | 10 |
| Additive primes | 26th | |
| Centered heptagonal primes | 3rd | |
| Chen primes | 35th | 59th |
| Class 1+ primes | 16th | |
| Cousin primes (2nd member) | 14th | |
| Good primes | 27th | |
| Harmonic primes | 31st | |
| Left-truncatable primes | 20th | |
| Pierpont primes of the 2nd kind | 16th | |
| Primes | 45th | 83rd |
| Prime quadruplets (3rd member) | 4th | |
| Prime triplets (2nd member) | 14th | |
| Prime triplets (3rd member) | 13th | |
| Pythagorean primes | 21st | |
| Sexy primes (2nd member) | 25th | |
| Sophie germain primes | 23rd | |
| Super primes | 23rd | |
| Twin primes (1st member) | 15th | 23rd |
| Ulam primes | 9th | 12th |
| Roman numberals | CXCVII | CDXXXI |
| Base 2 | 110001012 | 1101011112 |
| Base 3 | 210223 | 1202223 |
| Base 4 | 30114 | 122334 |
| Base 5 | 12425 | 32115 |
| Base 6 | 5256 | 15556 |
| Base 7 | 4017 | 11547 |
| Base 8 | 3058 | 6578 |
| Base 9 | 2389 | 5289 |
| Base 10 | 19710 | 43110 |
| Base 11 | 16a11 | 36211 |
| Base 12 | 14512 | 2bb12 |
| Base 13 | 12213 | 27213 |
| Base 14 | 10114 | 22b14 |
| Base 15 | d215 | 1db15 |
| Base 16 | c516 | 1af16 |