Compare 331 vs 343
| Property | 331 | 343 |
|---|---|---|
| Type | prime | composite number |
| Unique factors | 1 | 1 |
| Total factors | 1 | 3 |
| Prime factorization | 3311 | 73 |
| Prime factorization | 331 | 7 × 7 × 7 |
| Divisors count | 2 | 4 |
| Divisors | 1, 331 | 1, 7, 49, 343 |
| Number of properties | 10 | 0 |
| Additive primes | 39th | |
| Cuban primes 1 | 7th | |
| Good primes | 24th | |
| Happy primes | 17th | |
| Harmonic primes | 28th | |
| Isolated primes | 28th | |
| Lucky primes | 19th | |
| Primes | 67th | |
| Sexy primes (1st member) | 37th | |
| Super primes | 19th | |
| Roman numberals | CCCXXXI | CCCXLIII |
| Base 2 | 1010010112 | 1010101112 |
| Base 3 | 1100213 | 1102013 |
| Base 4 | 110234 | 111134 |
| Base 5 | 23115 | 23335 |
| Base 6 | 13116 | 13316 |
| Base 7 | 6527 | 10007 |
| Base 8 | 5138 | 5278 |
| Base 9 | 4079 | 4219 |
| Base 10 | 33110 | 34310 |
| Base 11 | 28111 | 29211 |
| Base 12 | 23712 | 24712 |
| Base 13 | 1c613 | 20513 |
| Base 14 | 19914 | 1a714 |
| Base 15 | 17115 | 17d15 |
| Base 16 | 14b16 | 15716 |