Compare 6421 vs 6423
| Property | 6421 | 6423 |
|---|---|---|
| Type | prime | semiprime |
| Unique factors | 1 | 2 |
| Total factors | 1 | 2 |
| Prime factorization | 64211 | 31 × 21411 |
| Prime factorization | 6421 | 3 × 2141 |
| Divisors count | 2 | 4 |
| Divisors | 1, 6421 | 1, 3, 2141, 6423 |
| Number of properties | 7 | 1 |
| Additive primes | 419th | |
| Chen primes | 456th | |
| Harmonic primes | 301st | |
| Isolated primes | 538th | |
| Primes | 835th | |
| Pythagorean primes | 410th | |
| Semiprimes | 1725th | |
| Sexy primes (1st member) | 302nd | |
| Roman numberals | ||
| Base 2 | 11001000101012 | 11001000101112 |
| Base 3 | 222102113 | 222102203 |
| Base 4 | 12101114 | 12101134 |
| Base 5 | 2011415 | 2011435 |
| Base 6 | 454216 | 454236 |
| Base 7 | 245027 | 245047 |
| Base 8 | 144258 | 144278 |
| Base 9 | 87249 | 87269 |
| Base 10 | 642110 | 642310 |
| Base 11 | 490811 | 490a11 |
| Base 12 | 387112 | 387312 |
| Base 13 | 2bcc13 | 2c0113 |
| Base 14 | 24a914 | 24ab14 |
| Base 15 | 1d8115 | 1d8315 |
| Base 16 | 191516 | 191716 |