Compare 191 vs 797
| Property | 191 | 797 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 1911 | 7971 |
| Prime factorization | 191 | 797 |
| Divisors count | 2 | 2 |
| Divisors | 1, 191 | 1, 797 |
| Number of properties | 16 | 11 |
| Additive primes | 24th | 73rd |
| Chen primes | 34th | 94th |
| Class 1+ primes | 14th | |
| Good primes | 16th | |
| Harmonic primes | 15th | |
| Isolated primes | 80th | |
| Left-truncatable primes | 45th | |
| Palindromic primes | 10th | 18th |
| Pierpont primes of the 2nd kind | 14th | |
| Primes | 43rd | 139th |
| Prime quadruplets (1st member) | 4th | |
| Prime triplets (1st member) | 13th | |
| Pythagorean primes | 67th | |
| Restricted right-truncatable primes | 4th | |
| Right-truncatable primes | 27th | |
| Sexy primes (1st member) | 25th | |
| Solinas primes | 25th | |
| Sophie germain primes | 15th | |
| Super primes | 14th | 34th |
| Thabit primes | 6th | |
| Twin primes (1st member) | 14th | |
| Two-sided primes | 12th | |
| Roman numberals | CXCI | DCCXCVII |
| Base 2 | 101111112 | 11000111012 |
| Base 3 | 210023 | 10021123 |
| Base 4 | 23334 | 301314 |
| Base 5 | 12315 | 111425 |
| Base 6 | 5156 | 34056 |
| Base 7 | 3627 | 22167 |
| Base 8 | 2778 | 14358 |
| Base 9 | 2329 | 10759 |
| Base 10 | 19110 | 79710 |
| Base 11 | 16411 | 66511 |
| Base 12 | 13b12 | 56512 |
| Base 13 | 11913 | 49413 |
| Base 14 | d914 | 40d14 |
| Base 15 | cb15 | 38215 |
| Base 16 | bf16 | 31d16 |