Compare 8191 vs 8641
| Property | 8191 | 8641 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 81911 | 86411 |
| Prime factorization | 8191 | 8641 |
| Divisors count | 2 | 2 |
| Divisors | 1, 8191 | 1, 8641 |
| Number of properties | 10 | 7 |
| Additive primes | 503rd | 524th |
| Chen primes | 552nd | |
| Class 1+ primes | 25th | |
| Harmonic primes | 377th | 394th |
| Isolated primes | 675th | 707th |
| Lucky primes | 186th | 193rd |
| Mersenne primes | 5th | |
| Pierpont primes of the 2nd kind | 25th | |
| Primes | 1028th | 1076th |
| Pythagorean primes | 535th | |
| Sexy primes (1st member) | 364th | |
| Solinas primes | 76th | |
| Roman numberals | ||
| Base 2 | 11111111111112 | 100001110000012 |
| Base 3 | 1020201013 | 1022120013 |
| Base 4 | 13333334 | 20130014 |
| Base 5 | 2302315 | 2340315 |
| Base 6 | 1015316 | 1040016 |
| Base 7 | 326117 | 341237 |
| Base 8 | 177778 | 207018 |
| Base 9 | 122119 | 127619 |
| Base 10 | 819110 | 864110 |
| Base 11 | 617711 | 654611 |
| Base 12 | 48a712 | 500112 |
| Base 13 | 396113 | 3c1913 |
| Base 14 | 2db114 | 321314 |
| Base 15 | 266115 | 286115 |
| Base 16 | 1fff16 | 21c116 |