Compare 191 vs 15641
| Property | 191 | 15641 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 1911 | 156411 |
| Prime factorization | 191 | 15641 |
| Divisors count | 2 | 2 |
| Divisors | 1, 191 | 1, 15641 |
| Number of properties | 16 | 11 |
| Additive primes | 24th | 866th |
| Chen primes | 34th | 921st |
| Class 1+ primes | 14th | |
| Good primes | 16th | |
| Happy primes | 313th | |
| Harmonic primes | 15th | 661st |
| Palindromic primes | 10th | |
| Pierpont primes of the 2nd kind | 14th | |
| Primes | 43rd | 1823rd |
| Prime quadruplets (1st member) | 4th | 14th |
| Prime triplets (1st member) | 13th | 139th |
| Pythagorean primes | 903rd | |
| Sexy primes (1st member) | 25th | 563rd |
| Solinas primes | 25th | |
| Sophie germain primes | 15th | |
| Super primes | 14th | 281st |
| Thabit primes | 6th | |
| Twin primes (1st member) | 14th | 279th |
| Roman numberals | CXCI | |
| Base 2 | 101111112 | 111101000110012 |
| Base 3 | 210023 | 2101100223 |
| Base 4 | 23334 | 33101214 |
| Base 5 | 12315 | 10000315 |
| Base 6 | 5156 | 2002256 |
| Base 7 | 3627 | 634137 |
| Base 8 | 2778 | 364318 |
| Base 9 | 2329 | 234089 |
| Base 10 | 19110 | 1564110 |
| Base 11 | 16411 | 1082a11 |
| Base 12 | 13b12 | 907512 |
| Base 13 | 11913 | 717213 |
| Base 14 | d914 | 59b314 |
| Base 15 | cb15 | 497b15 |
| Base 16 | bf16 | 3d1916 |