Compare 21191 vs 21313
| Property | 21191 | 21313 | 
|---|---|---|
| Type | prime | prime | 
| Unique factors | 1 | 1 | 
| Total factors | 1 | 1 | 
| Prime factorization | 211911 | 213131 | 
| Prime factorization | 21191 | 21313 | 
| Divisors count | 2 | 2 | 
| Divisors | 1, 21191 | 1, 21313 | 
| Number of properties | 7 | 7 | 
| Chen primes | 1171st | |
| Cousin primes (1st member) | 362nd | |
| Cousin primes (2nd member) | 361st | |
| Good primes | 267th | |
| Isolated primes | 1671st | |
| Primes | 2383rd | 2392nd | 
| Prime triplets (1st member) | 179th | |
| Prime triplets (2nd member) | 178th | |
| Pythagorean primes | 1187th | |
| Sexy primes (1st member) | 725th | |
| Super primes | 354th | |
| Twin primes (1st member) | 361st | |
| Ulam primes | 179th | |
| Roman numberals | ||
| Base 2 | 1010010110001112 | 1010011010000012 | 
| Base 3 | 10020012123 | 10020201013 | 
| Base 4 | 110230134 | 110310014 | 
| Base 5 | 11342315 | 11402235 | 
| Base 6 | 2420356 | 2424016 | 
| Base 7 | 1155327 | 1160657 | 
| Base 8 | 513078 | 515018 | 
| Base 9 | 320559 | 322119 | 
| Base 10 | 2119110 | 2131310 | 
| Base 11 | 14a1511 | 1501611 | 
| Base 12 | 1031b12 | 1040112 | 
| Base 13 | 985113 | 991613 | 
| Base 14 | 7a1914 | 7aa514 | 
| Base 15 | 642b15 | 64ad15 | 
| Base 16 | 52c716 | 534116 |