Compare 666139 vs 666353
| Property | 666139 | 666353 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 6661391 | 6663531 |
| Prime factorization | 666139 | 666353 |
| Divisors count | 2 | 2 |
| Divisors | 1, 666139 | 1, 666353 |
| Number of properties | 4 | 4 |
| Additive primes | 21093rd | 21098th |
| Chen primes | 21133rd | |
| Cousin primes (1st member) | 5825th | |
| Isolated primes | 42372nd | 42385th |
| Primes | 54035th | 54048th |
| Roman numberals | ||
| Base 2 | 101000101010000110112 | 101000101010111100012 |
| Base 3 | 10202112022113 | 10202120012023 |
| Base 4 | 22022201234 | 22022233014 |
| Base 5 | 1323040245 | 1323104035 |
| Base 6 | 221355516 | 221405456 |
| Base 7 | 54430457 | 54435027 |
| Base 8 | 24250338 | 24253618 |
| Base 9 | 12246849 | 12250529 |
| Base 10 | 66613910 | 66635310 |
| Base 11 | 41553111 | 41570611 |
| Base 12 | 2815b712 | 28175512 |
| Base 13 | 1a428613 | 1a43bc13 |
| Base 14 | 134a9514 | 134ba914 |
| Base 15 | d259415 | d268815 |
| Base 16 | a2a1b16 | a2af116 |