Compare 664319 vs 666143
| Property | 664319 | 666143 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 6643191 | 6661431 |
| Prime factorization | 664319 | 666143 |
| Divisors count | 2 | 2 |
| Divisors | 1, 664319 | 1, 666143 |
| Number of properties | 5 | 4 |
| Additive primes | 21035th | |
| Chen primes | 21079th | |
| Cousin primes (2nd member) | 5825th | |
| Isolated primes | 42257th | 42373rd |
| Primes | 53892nd | 54036th |
| Safe primes | 3111th | 3118th |
| Roman numberals | ||
| Base 2 | 101000100010111111112 | 101000101010000111112 |
| Base 3 | 10202020211023 | 10202112022223 |
| Base 4 | 22020233334 | 22022201334 |
| Base 5 | 1322242345 | 1323040335 |
| Base 6 | 221233156 | 221355556 |
| Base 7 | 54345357 | 54430527 |
| Base 8 | 24213778 | 24250378 |
| Base 9 | 12222429 | 12246889 |
| Base 10 | 66431910 | 66614310 |
| Base 11 | 41412711 | 41553511 |
| Base 12 | 28053b12 | 2815bb12 |
| Base 13 | 1a34b613 | 1a428a13 |
| Base 14 | 13415514 | 134a9914 |
| Base 15 | d1c7e15 | d259815 |
| Base 16 | a22ff16 | a2a1f16 |