Compare 666431 vs 666671
| Property | 666431 | 666671 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 6664311 | 6666711 |
| Prime factorization | 666431 | 666671 |
| Divisors count | 2 | 2 |
| Divisors | 1, 666431 | 1, 666671 |
| Number of properties | 10 | 4 |
| Chen primes | 21134th | 21140th |
| Cousin primes (2nd member) | 5828th | 5831st |
| Isolated primes | 42398th | |
| Primes | 54051st | 54071st |
| Prime quadruplets (1st member) | 130th | |
| Prime quintuplet 1s (2nd member) | 26th | |
| Prime triplets (1st member) | 2128th | |
| Prime triplets (2nd member) | 2127th | |
| Sexy primes (1st member) | 11664th | |
| Twin primes (1st member) | 5833rd | |
| Ulam primes | 3969th | |
| Roman numberals | ||
| Base 2 | 101000101011001111112 | 101000101100001011112 |
| Base 3 | 10202120111223 | 10202121111123 |
| Base 4 | 22022303334 | 22023002334 |
| Base 5 | 1323112115 | 1323131415 |
| Base 6 | 221411556 | 221422356 |
| Base 7 | 54436437 | 54444357 |
| Base 8 | 24254778 | 24260578 |
| Base 9 | 12251489 | 12254459 |
| Base 10 | 66643110 | 66667110 |
| Base 11 | 41577711 | 41597511 |
| Base 12 | 2817bb12 | 28197b12 |
| Base 13 | 1a444c13 | 1a45a513 |
| Base 14 | 134c2314 | 134d5514 |
| Base 15 | d26db15 | d27eb15 |
| Base 16 | a2b3f16 | a2c2f16 |