Compare 411 vs 421
| Property | 411 | 421 |
|---|---|---|
| Type | semiprime | prime |
| Unique factors | 2 | 1 |
| Total factors | 2 | 1 |
| Prime factorization | 31 × 1371 | 4211 |
| Prime factorization | 3 × 137 | 421 |
| Divisors count | 4 | 2 |
| Divisors | 1, 3, 137, 411 | 1, 421 |
| Number of properties | 1 | 6 |
| Additive primes | 48th | |
| Centered square primes | 8th | |
| Lucky primes | 23rd | |
| Primes | 82nd | |
| Pythagorean primes | 40th | |
| Semiprimes | 129th | |
| Twin primes (2nd member) | 22nd | |
| Roman numberals | CDXI | CDXXI |
| Base 2 | 1100110112 | 1101001012 |
| Base 3 | 1200203 | 1201213 |
| Base 4 | 121234 | 122114 |
| Base 5 | 31215 | 31415 |
| Base 6 | 15236 | 15416 |
| Base 7 | 11257 | 11417 |
| Base 8 | 6338 | 6458 |
| Base 9 | 5069 | 5179 |
| Base 10 | 41110 | 42110 |
| Base 11 | 34411 | 35311 |
| Base 12 | 2a312 | 2b112 |
| Base 13 | 25813 | 26513 |
| Base 14 | 21514 | 22114 |
| Base 15 | 1c615 | 1d115 |
| Base 16 | 19b16 | 1a516 |