Compare 665993 vs 666139
| Property | 665993 | 666139 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 6659931 | 6661391 |
| Prime factorization | 665993 | 666139 |
| Divisors count | 2 | 2 |
| Divisors | 1, 665993 | 1, 666139 |
| Number of properties | 3 | 4 |
| Additive primes | 21093rd | |
| Cousin primes (1st member) | 5825th | |
| Isolated primes | 42361st | 42372nd |
| Primes | 54022nd | 54035th |
| Sophie germain primes | 5495th | |
| Roman numberals | ||
| Base 2 | 101000101001100010012 | 101000101010000110112 |
| Base 3 | 10202111201023 | 10202112022113 |
| Base 4 | 22022120214 | 22022201234 |
| Base 5 | 1323024335 | 1323040245 |
| Base 6 | 221351456 | 221355516 |
| Base 7 | 54424467 | 54430457 |
| Base 8 | 24246118 | 24250338 |
| Base 9 | 12245129 | 12246849 |
| Base 10 | 66599310 | 66613910 |
| Base 11 | 41540911 | 41553111 |
| Base 12 | 2814b512 | 2815b712 |
| Base 13 | 1a41a313 | 1a428613 |
| Base 14 | 1349cd14 | 134a9514 |
| Base 15 | d24e815 | d259415 |
| Base 16 | a298916 | a2a1b16 |