Compare 666871 vs 668089
| Property | 666871 | 668089 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 6668711 | 6680891 |
| Prime factorization | 666871 | 668089 |
| Divisors count | 2 | 2 |
| Divisors | 1, 666871 | 1, 668089 |
| Number of properties | 3 | 5 |
| Additive primes | 21150th | |
| Cousin primes (1st member) | 5844th | |
| Isolated primes | 42410th | 42479th |
| Lucky primes | 6187th | 6195th |
| Primes | 54087th | 54176th |
| Roman numberals | ||
| Base 2 | 101000101100111101112 | 101000110001101110012 |
| Base 3 | 10202122022213 | 10202211100013 |
| Base 4 | 22023033134 | 22030123214 |
| Base 5 | 1323144415 | 1323343245 |
| Base 6 | 221432116 | 221530016 |
| Base 7 | 54451427 | 54515327 |
| Base 8 | 24263678 | 24306718 |
| Base 9 | 12256879 | 12274019 |
| Base 10 | 66687110 | 66808910 |
| Base 11 | 41603711 | 416a4411 |
| Base 12 | 281b0712 | 28276112 |
| Base 13 | 1a46ca13 | 1a512613 |
| Base 14 | 13505914 | 13568914 |
| Base 15 | d28d115 | d2e4415 |
| Base 16 | a2cf716 | a31b916 |