Compare 665993 vs 666089
| Property | 665993 | 666089 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 6659931 | 6660891 |
| Prime factorization | 665993 | 666089 |
| Divisors count | 2 | 2 |
| Divisors | 1, 665993 | 1, 666089 |
| Number of properties | 3 | 3 |
| Chen primes | 21128th | |
| Isolated primes | 42361st | |
| Primes | 54022nd | 54031st |
| Sophie germain primes | 5495th | |
| Twin primes (1st member) | 5832nd | |
| Roman numberals | ||
| Base 2 | 101000101001100010012 | 101000101001111010012 |
| Base 3 | 10202111201023 | 10202112002223 |
| Base 4 | 22022120214 | 22022132214 |
| Base 5 | 1323024335 | 1323033245 |
| Base 6 | 221351456 | 221354256 |
| Base 7 | 54424467 | 54426447 |
| Base 8 | 24246118 | 24247518 |
| Base 9 | 12245129 | 12246289 |
| Base 10 | 66599310 | 66608910 |
| Base 11 | 41540911 | 41549611 |
| Base 12 | 2814b512 | 28157512 |
| Base 13 | 1a41a313 | 1a424813 |
| Base 14 | 1349cd14 | 134a5b14 |
| Base 15 | d24e815 | d255e15 |
| Base 16 | a298916 | a29e916 |