Compare 663959 vs 664009
| Property | 663959 | 664009 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 6639591 | 6640091 |
| Prime factorization | 663959 | 664009 |
| Divisors count | 2 | 2 |
| Divisors | 1, 663959 | 1, 664009 |
| Number of properties | 3 | 2 |
| Chen primes | 21066th | |
| Isolated primes | 42238th | |
| Primes | 53860th | 53869th |
| Twin primes (1st member) | 5815th | |
| Roman numberals | ||
| Base 2 | 101000100001100101112 | 101000100001110010012 |
| Base 3 | 10202012100023 | 10202012112213 |
| Base 4 | 22020121134 | 22020130214 |
| Base 5 | 1322213145 | 1322220145 |
| Base 6 | 221215156 | 221220416 |
| Base 7 | 54335127 | 54336137 |
| Base 8 | 24206278 | 24207118 |
| Base 9 | 12217029 | 12217579 |
| Base 10 | 66395910 | 66400910 |
| Base 11 | 41392a11 | 41397511 |
| Base 12 | 28029b12 | 28032112 |
| Base 13 | 1a329a13 | 1a330813 |
| Base 14 | 133d7914 | 133db314 |
| Base 15 | d1ade15 | d1b2415 |
| Base 16 | a219716 | a21c916 |