Compare 666143 vs 666329
| Property | 666143 | 666329 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 6661431 | 6663291 |
| Prime factorization | 666143 | 666329 |
| Divisors count | 2 | 2 |
| Divisors | 1, 666143 | 1, 666329 |
| Number of properties | 4 | 3 |
| Chen primes | 21132nd | |
| Cousin primes (2nd member) | 5825th | |
| Isolated primes | 42373rd | 42384th |
| Primes | 54036th | 54047th |
| Safe primes | 3118th | |
| Roman numberals | ||
| Base 2 | 101000101010000111112 | 101000101010110110012 |
| Base 3 | 10202112022223 | 10202120002123 |
| Base 4 | 22022201334 | 22022231214 |
| Base 5 | 1323040335 | 1323103045 |
| Base 6 | 221355556 | 221405056 |
| Base 7 | 54430527 | 54434367 |
| Base 8 | 24250378 | 24253318 |
| Base 9 | 12246889 | 12250259 |
| Base 10 | 66614310 | 66632910 |
| Base 11 | 41553511 | 41569411 |
| Base 12 | 2815bb12 | 28173512 |
| Base 13 | 1a428a13 | 1a43a113 |
| Base 14 | 134a9914 | 134b8d14 |
| Base 15 | d259815 | d266e15 |
| Base 16 | a2a1f16 | a2ad916 |