Compare 19961 vs 20981
| Property | 19961 | 20981 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 199611 | 209811 |
| Prime factorization | 19961 | 20981 |
| Divisors count | 2 | 2 |
| Divisors | 1, 19961 | 1, 20981 |
| Number of properties | 5 | 5 |
| Chen primes | 1110th | 1161st |
| Good primes | 257th | 265th |
| Primes | 2256th | 2359th |
| Pythagorean primes | 1122nd | 1172nd |
| Twin primes (1st member) | 341st | 357th |
| Roman numberals | ||
| Base 2 | 1001101111110012 | 1010001111101012 |
| Base 3 | 10001010223 | 10012100023 |
| Base 4 | 103133214 | 110133114 |
| Base 5 | 11143215 | 11324115 |
| Base 6 | 2322256 | 2410456 |
| Base 7 | 1121247 | 1151127 |
| Base 8 | 467718 | 507658 |
| Base 9 | 303389 | 317029 |
| Base 10 | 1996110 | 2098110 |
| Base 11 | 13aa711 | 1484411 |
| Base 12 | b67512 | 1018512 |
| Base 13 | 911613 | 971c13 |
| Base 14 | 73bb14 | 790914 |
| Base 15 | 5dab15 | 633b15 |
| Base 16 | 4df916 | 51f516 |