Compare 6397 vs 6491
| Property | 6397 | 6491 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 63971 | 64911 |
| Prime factorization | 6397 | 6491 |
| Divisors count | 2 | 2 |
| Divisors | 1, 6397 | 1, 6491 |
| Number of properties | 5 | 4 |
| Chen primes | 460th | |
| Isolated primes | 537th | 543rd |
| Left-truncatable primes | 117th | |
| Primes | 834th | 842nd |
| Pythagorean primes | 409th | |
| Restricted left-truncatable primes | 8th | |
| Sophie germain primes | 143rd | |
| Roman numberals | ||
| Base 2 | 11000111111012 | 11001010110112 |
| Base 3 | 222022213 | 222201023 |
| Base 4 | 12033314 | 12111234 |
| Base 5 | 2010425 | 2014315 |
| Base 6 | 453416 | 500156 |
| Base 7 | 244367 | 246327 |
| Base 8 | 143758 | 145338 |
| Base 9 | 86879 | 88129 |
| Base 10 | 639710 | 649110 |
| Base 11 | 489611 | 497111 |
| Base 12 | 385112 | 390b12 |
| Base 13 | 2bb113 | 2c5413 |
| Base 14 | 248d14 | 251914 |
| Base 15 | 1d6715 | 1dcb15 |
| Base 16 | 18fd16 | 195b16 |