Compare 20981 vs 21313
| Property | 20981 | 21313 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 209811 | 213131 |
| Prime factorization | 20981 | 21313 |
| Divisors count | 2 | 2 |
| Divisors | 1, 20981 | 1, 21313 |
| Number of properties | 5 | 7 |
| Chen primes | 1161st | |
| Cousin primes (1st member) | 362nd | |
| Good primes | 265th | 267th |
| Isolated primes | 1671st | |
| Primes | 2359th | 2392nd |
| Prime triplets (1st member) | 179th | |
| Pythagorean primes | 1172nd | 1187th |
| Sexy primes (1st member) | 725th | |
| Twin primes (1st member) | 357th | |
| Roman numberals | ||
| Base 2 | 1010001111101012 | 1010011010000012 |
| Base 3 | 10012100023 | 10020201013 |
| Base 4 | 110133114 | 110310014 |
| Base 5 | 11324115 | 11402235 |
| Base 6 | 2410456 | 2424016 |
| Base 7 | 1151127 | 1160657 |
| Base 8 | 507658 | 515018 |
| Base 9 | 317029 | 322119 |
| Base 10 | 2098110 | 2131310 |
| Base 11 | 1484411 | 1501611 |
| Base 12 | 1018512 | 1040112 |
| Base 13 | 971c13 | 991613 |
| Base 14 | 790914 | 7aa514 |
| Base 15 | 633b15 | 64ad15 |
| Base 16 | 51f516 | 534116 |