Compare 343 vs 347
| Property | 343 | 347 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 1 | 1 |
| Total factors | 3 | 1 |
| Prime factorization | 73 | 3471 |
| Prime factorization | 7 × 7 × 7 | 347 |
| Divisors count | 4 | 2 |
| Divisors | 1, 7, 49, 343 | 1, 347 |
| Number of properties | 0 | 10 |
| Chen primes | 51st | |
| Emirps | 18th | |
| Good primes | 25th | |
| Left-truncatable primes | 26th | |
| Primes | 69th | |
| Prime triplets (1st member) | 20th | |
| Safe primes | 13th | |
| Sexy primes (1st member) | 38th | |
| Sexy prime triplets (1st member) | 18th | |
| Twin primes (1st member) | 21st | |
| Roman numberals | CCCXLIII | CCCXLVII |
| Base 2 | 1010101112 | 1010110112 |
| Base 3 | 1102013 | 1102123 |
| Base 4 | 111134 | 111234 |
| Base 5 | 23335 | 23425 |
| Base 6 | 13316 | 13356 |
| Base 7 | 10007 | 10047 |
| Base 8 | 5278 | 5338 |
| Base 9 | 4219 | 4259 |
| Base 10 | 34310 | 34710 |
| Base 11 | 29211 | 29611 |
| Base 12 | 24712 | 24b12 |
| Base 13 | 20513 | 20913 |
| Base 14 | 1a714 | 1ab14 |
| Base 15 | 17d15 | 18215 |
| Base 16 | 15716 | 15b16 |