Compare 42821 vs 42839
| Property | 42821 | 42839 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 428211 | 428391 |
| Prime factorization | 42821 | 42839 |
| Divisors count | 2 | 2 |
| Divisors | 1, 42821 | 1, 42839 |
| Number of properties | 5 | 4 |
| Additive primes | 1999th | |
| Chen primes | 2097th | |
| Isolated primes | 3236th | |
| Primes | 4477th | 4479th |
| Pythagorean primes | 2221st | |
| Safe primes | 349th | |
| Sophie germain primes | 595th | |
| Twin primes (1st member) | 622nd | |
| Roman numberals | ||
| Base 2 | 10100111010001012 | 10100111010101112 |
| Base 3 | 20112012223 | 20112021223 |
| Base 4 | 221310114 | 221311134 |
| Base 5 | 23322415 | 23323245 |
| Base 6 | 5301256 | 5301556 |
| Base 7 | 2355627 | 2356167 |
| Base 8 | 1235058 | 1235278 |
| Base 9 | 646589 | 646789 |
| Base 10 | 4282110 | 4283910 |
| Base 11 | 2a19911 | 2a20511 |
| Base 12 | 2094512 | 2095b12 |
| Base 13 | 1664c13 | 1666413 |
| Base 14 | 1186914 | 1187d14 |
| Base 15 | ca4b15 | ca5e15 |
| Base 16 | a74516 | a75716 |