Compare 421 vs 439
| Property | 421 | 439 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 4211 | 4391 |
| Prime factorization | 421 | 439 |
| Divisors count | 2 | 2 |
| Divisors | 1, 421 | 1, 439 |
| Number of properties | 6 | 4 |
| Additive primes | 48th | |
| Centered square primes | 8th | |
| Cousin primes (1st member) | 23rd | |
| Isolated primes | 40th | |
| Lucky primes | 23rd | |
| Primes | 82nd | 85th |
| Pythagorean primes | 40th | |
| Sexy primes (2nd member) | 43rd | |
| Twin primes (2nd member) | 22nd | |
| Roman numberals | CDXXI | CDXXXIX |
| Base 2 | 1101001012 | 1101101112 |
| Base 3 | 1201213 | 1210213 |
| Base 4 | 122114 | 123134 |
| Base 5 | 31415 | 32245 |
| Base 6 | 15416 | 20116 |
| Base 7 | 11417 | 11657 |
| Base 8 | 6458 | 6678 |
| Base 9 | 5179 | 5379 |
| Base 10 | 42110 | 43910 |
| Base 11 | 35311 | 36a11 |
| Base 12 | 2b112 | 30712 |
| Base 13 | 26513 | 27a13 |
| Base 14 | 22114 | 23514 |
| Base 15 | 1d115 | 1e415 |
| Base 16 | 1a516 | 1b716 |