Compare 418 vs 421
| Property | 418 | 421 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 3 | 1 |
| Prime factorization | 21 × 111 × 191 | 4211 |
| Prime factorization | 2 × 11 × 19 | 421 |
| Divisors count | 8 | 2 |
| Divisors | 1, 2, 11, 19, 22, 38, 209, 418 | 1, 421 |
| Number of properties | 0 | 6 |
| Additive primes | 48th | |
| Centered square primes | 8th | |
| Lucky primes | 23rd | |
| Primes | 82nd | |
| Pythagorean primes | 40th | |
| Twin primes (2nd member) | 22nd | |
| Roman numberals | CDXVIII | CDXXI |
| Base 2 | 1101000102 | 1101001012 |
| Base 3 | 1201113 | 1201213 |
| Base 4 | 122024 | 122114 |
| Base 5 | 31335 | 31415 |
| Base 6 | 15346 | 15416 |
| Base 7 | 11357 | 11417 |
| Base 8 | 6428 | 6458 |
| Base 9 | 5149 | 5179 |
| Base 10 | 41810 | 42110 |
| Base 11 | 35011 | 35311 |
| Base 12 | 2aa12 | 2b112 |
| Base 13 | 26213 | 26513 |
| Base 14 | 21c14 | 22114 |
| Base 15 | 1cd15 | 1d115 |
| Base 16 | 1a216 | 1a516 |