Compare 191 vs 383
| Property | 191 | 383 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 1911 | 3831 |
| Prime factorization | 191 | 383 |
| Divisors count | 2 | 2 |
| Divisors | 1, 191 | 1, 383 |
| Number of properties | 16 | 14 |
| Additive primes | 24th | |
| Chen primes | 34th | |
| Class 1+ primes | 14th | 15th |
| Cousin primes (2nd member) | 21st | |
| Good primes | 16th | |
| Happy primes | 20th | |
| Harmonic primes | 15th | |
| Isolated primes | 35th | |
| Left-truncatable primes | 30th | |
| Long primes | 28th | |
| Palindromic primes | 10th | 14th |
| Pierpont primes of the 2nd kind | 14th | 15th |
| Primes | 43rd | 76th |
| Prime quadruplets (1st member) | 4th | |
| Prime triplets (1st member) | 13th | |
| Safe primes | 15th | |
| Sexy primes (1st member) | 25th | 42nd |
| Solinas primes | 25th | 34th |
| Sophie germain primes | 15th | |
| Super primes | 14th | |
| Thabit primes | 6th | 7th |
| Twin primes (1st member) | 14th | |
| Woodall primes | 3rd | |
| Roman numberals | CXCI | CCCLXXXIII |
| Base 2 | 101111112 | 1011111112 |
| Base 3 | 210023 | 1120123 |
| Base 4 | 23334 | 113334 |
| Base 5 | 12315 | 30135 |
| Base 6 | 5156 | 14356 |
| Base 7 | 3627 | 10557 |
| Base 8 | 2778 | 5778 |
| Base 9 | 2329 | 4659 |
| Base 10 | 19110 | 38310 |
| Base 11 | 16411 | 31911 |
| Base 12 | 13b12 | 27b12 |
| Base 13 | 11913 | 23613 |
| Base 14 | d914 | 1d514 |
| Base 15 | cb15 | 1a815 |
| Base 16 | bf16 | 17f16 |