Compare 409 vs 431
| Property | 409 | 431 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 4091 | 4311 |
| Prime factorization | 409 | 431 |
| Divisors count | 2 | 2 |
| Divisors | 1, 409 | 1, 431 |
| Number of properties | 9 | 10 |
| Additive primes | 47th | |
| Centered triangular primes | 5th | |
| Chen primes | 57th | 59th |
| Class 1+ primes | 16th | |
| Good primes | 27th | |
| Happy primes | 22nd | |
| Harmonic primes | 31st | |
| Isolated primes | 39th | |
| Lucky primes | 22nd | |
| Pierpont primes of the 2nd kind | 16th | |
| Primes | 80th | 83rd |
| Pythagorean primes | 39th | |
| Sophie germain primes | 23rd | |
| Super primes | 23rd | |
| Twin primes (1st member) | 23rd | |
| Ulam primes | 11th | 12th |
| Roman numberals | CDIX | CDXXXI |
| Base 2 | 1100110012 | 1101011112 |
| Base 3 | 1200113 | 1202223 |
| Base 4 | 121214 | 122334 |
| Base 5 | 31145 | 32115 |
| Base 6 | 15216 | 15556 |
| Base 7 | 11237 | 11547 |
| Base 8 | 6318 | 6578 |
| Base 9 | 5049 | 5289 |
| Base 10 | 40910 | 43110 |
| Base 11 | 34211 | 36211 |
| Base 12 | 2a112 | 2bb12 |
| Base 13 | 25613 | 27213 |
| Base 14 | 21314 | 22b14 |
| Base 15 | 1c415 | 1db15 |
| Base 16 | 19916 | 1af16 |