Compare 668243 vs 668609
| Property | 668243 | 668609 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 6682431 | 6686091 |
| Prime factorization | 668243 | 668609 |
| Divisors count | 2 | 2 |
| Divisors | 1, 668243 | 1, 668609 |
| Number of properties | 5 | 3 |
| Additive primes | 21156th | |
| Chen primes | 21182nd | 21189th |
| Isolated primes | 42488th | |
| Primes | 54187th | 54205th |
| Sophie germain primes | 5509th | |
| Twin primes (1st member) | 5853rd | |
| Roman numberals | ||
| Base 2 | 101000110010010100112 | 101000110011110000012 |
| Base 3 | 10202211222023 | 10202220110223 |
| Base 4 | 22030211034 | 22030330014 |
| Base 5 | 1323404335 | 1323434145 |
| Base 6 | 221534156 | 221552256 |
| Base 7 | 54521427 | 54532047 |
| Base 8 | 24311238 | 24317018 |
| Base 9 | 12275829 | 12281389 |
| Base 10 | 66824310 | 66860910 |
| Base 11 | 41707411 | 41737711 |
| Base 12 | 28286b12 | 282b1512 |
| Base 13 | 1a521413 | 1a543613 |
| Base 14 | 13575914 | 13593b14 |
| Base 15 | d2ee815 | d318e15 |
| Base 16 | a325316 | a33c116 |