Compare 42815 vs 42821
| Property | 42815 | 42821 |
|---|---|---|
| Type | semiprime | prime |
| Unique factors | 2 | 1 |
| Total factors | 2 | 1 |
| Prime factorization | 51 × 85631 | 428211 |
| Prime factorization | 5 × 8563 | 42821 |
| Divisors count | 4 | 2 |
| Divisors | 1, 5, 8563, 42815 | 1, 42821 |
| Number of properties | 1 | 5 |
| Additive primes | 1999th | |
| Isolated primes | 3236th | |
| Primes | 4477th | |
| Pythagorean primes | 2221st | |
| Semiprimes | 10422nd | |
| Sophie germain primes | 595th | |
| Roman numberals | ||
| Base 2 | 10100111001111112 | 10100111010001012 |
| Base 3 | 20112012023 | 20112012223 |
| Base 4 | 221303334 | 221310114 |
| Base 5 | 23322305 | 23322415 |
| Base 6 | 5301156 | 5301256 |
| Base 7 | 2355537 | 2355627 |
| Base 8 | 1234778 | 1235058 |
| Base 9 | 646529 | 646589 |
| Base 10 | 4281510 | 4282110 |
| Base 11 | 2a19311 | 2a19911 |
| Base 12 | 2093b12 | 2094512 |
| Base 13 | 1664613 | 1664c13 |
| Base 14 | 1186314 | 1186914 |
| Base 15 | ca4515 | ca4b15 |
| Base 16 | a73f16 | a74516 |