Compare 666143 vs 666959
| Property | 666143 | 666959 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 6661431 | 6669591 |
| Prime factorization | 666143 | 666959 |
| Divisors count | 2 | 2 |
| Divisors | 1, 666143 | 1, 666959 |
| Number of properties | 4 | 6 |
| Additive primes | 21114th | |
| Chen primes | 21146th | |
| Cousin primes (2nd member) | 5825th | |
| Isolated primes | 42373rd | 42415th |
| Primes | 54036th | 54092nd |
| Safe primes | 3118th | 3124th |
| Sophie germain primes | 5499th | |
| Roman numberals | ||
| Base 2 | 101000101010000111112 | 101000101101010011112 |
| Base 3 | 10202112022223 | 10202122200123 |
| Base 4 | 22022201334 | 22023110334 |
| Base 5 | 1323040335 | 1323203145 |
| Base 6 | 221355556 | 221434356 |
| Base 7 | 54430527 | 54453267 |
| Base 8 | 24250378 | 24265178 |
| Base 9 | 12246889 | 12258059 |
| Base 10 | 66614310 | 66695910 |
| Base 11 | 41553511 | 41610711 |
| Base 12 | 2815bb12 | 281b7b12 |
| Base 13 | 1a428a13 | 1a476713 |
| Base 14 | 134a9914 | 1350bd14 |
| Base 15 | d259815 | d293e15 |
| Base 16 | a2a1f16 | a2d4f16 |