Compare 63997 vs 64921
| Property | 63997 | 64921 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 639971 | 649211 |
| Prime factorization | 63997 | 64921 |
| Divisors count | 2 | 2 |
| Divisors | 1, 63997 | 1, 64921 |
| Number of properties | 4 | 5 |
| Isolated primes | 4724th | |
| Lucky primes | 883rd | 891st |
| Primes | 6413th | 6488th |
| Pythagorean primes | 3195th | 3232nd |
| Sexy primes (1st member) | 1736th | |
| Twin primes (2nd member) | 854th | |
| Roman numberals | ||
| Base 2 | 11111001111111012 | 11111101100110012 |
| Base 3 | 100202100213 | 100220011113 |
| Base 4 | 332133314 | 333121214 |
| Base 5 | 40214425 | 40341415 |
| Base 6 | 12121416 | 12203216 |
| Base 7 | 3544037 | 3601637 |
| Base 8 | 1747758 | 1766318 |
| Base 9 | 1067079 | 1080449 |
| Base 10 | 6399710 | 6492110 |
| Base 11 | 4409a11 | 4485a11 |
| Base 12 | 3105112 | 316a112 |
| Base 13 | 2318b13 | 2371c13 |
| Base 14 | 1947314 | 1993314 |
| Base 15 | 13e6715 | 1438115 |
| Base 16 | f9fd16 | fd9916 |