Compare 6421 vs 6547
| Property | 6421 | 6547 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 64211 | 65471 |
| Prime factorization | 6421 | 6547 |
| Divisors count | 2 | 2 |
| Divisors | 1, 6421 | 1, 6547 |
| Number of properties | 7 | 8 |
| Additive primes | 419th | |
| Chen primes | 456th | |
| Cousin primes (1st member) | 147th | |
| Good primes | 129th | |
| Harmonic primes | 301st | 305th |
| Isolated primes | 538th | 546th |
| Left-truncatable primes | 118th | |
| Primes | 835th | 845th |
| Prime triplets (1st member) | 93rd | |
| Pythagorean primes | 410th | |
| Sexy primes (1st member) | 302nd | 303rd |
| Roman numberals | ||
| Base 2 | 11001000101012 | 11001100100112 |
| Base 3 | 222102113 | 222221113 |
| Base 4 | 12101114 | 12121034 |
| Base 5 | 2011415 | 2021425 |
| Base 6 | 454216 | 501516 |
| Base 7 | 245027 | 250427 |
| Base 8 | 144258 | 146238 |
| Base 9 | 87249 | 88749 |
| Base 10 | 642110 | 654710 |
| Base 11 | 490811 | 4a1211 |
| Base 12 | 387112 | 395712 |
| Base 13 | 2bcc13 | 2c9813 |
| Base 14 | 24a914 | 255914 |
| Base 15 | 1d8115 | 1e1715 |
| Base 16 | 191516 | 199316 |