Compare 4091 vs 8161
| Property | 4091 | 8161 | 
|---|---|---|
| Type | prime | prime | 
| Unique factors | 1 | 1 | 
| Total factors | 1 | 1 | 
| Prime factorization | 40911 | 81611 | 
| Prime factorization | 4091 | 8161 | 
| Divisors count | 2 | 2 | 
| Divisors | 1, 4091 | 1, 8161 | 
| Number of properties | 7 | 7 | 
| Chen primes | 325th | |
| Good primes | 151st | |
| Harmonic primes | 202nd | |
| Isolated primes | 671st | |
| Long primes | 224th | |
| Lucky primes | 185th | |
| Primes | 563rd | 1024th | 
| Pythagorean primes | 509th | |
| Sexy primes (1st member) | 351st | |
| Solinas primes | 64th | 75th | 
| Super primes | 103rd | |
| Twin primes (1st member) | 107th | |
| Roman numberals | MMMMXCI | |
| Base 2 | 1111111110112 | 11111111000012 | 
| Base 3 | 121211123 | 1020120213 | 
| Base 4 | 3333234 | 13332014 | 
| Base 5 | 1123315 | 2301215 | 
| Base 6 | 305356 | 1014416 | 
| Base 7 | 146337 | 325367 | 
| Base 8 | 77738 | 177418 | 
| Base 9 | 55459 | 121679 | 
| Base 10 | 409110 | 816110 | 
| Base 11 | 308a11 | 614a11 | 
| Base 12 | 244b12 | 488112 | 
| Base 13 | 1b2913 | 393a13 | 
| Base 14 | 16c314 | 2d8d14 | 
| Base 15 | 132b15 | 264115 | 
| Base 16 | ffb16 | 1fe116 |