Compare 342 vs 347
| Property | 342 | 347 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 4 | 1 |
| Prime factorization | 21 × 32 × 191 | 3471 |
| Prime factorization | 2 × 3 × 3 × 19 | 347 |
| Divisors count | 12 | 2 |
| Divisors | 1, 2, 3, 6, 9, 18, 19, 38, 57, 114, 171, 342 | 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 | CCCXLII | CCCXLVII |
| Base 2 | 1010101102 | 1010110112 |
| Base 3 | 1102003 | 1102123 |
| Base 4 | 111124 | 111234 |
| Base 5 | 23325 | 23425 |
| Base 6 | 13306 | 13356 |
| Base 7 | 6667 | 10047 |
| Base 8 | 5268 | 5338 |
| Base 9 | 4209 | 4259 |
| Base 10 | 34210 | 34710 |
| Base 11 | 29111 | 29611 |
| Base 12 | 24612 | 24b12 |
| Base 13 | 20413 | 20913 |
| Base 14 | 1a614 | 1ab14 |
| Base 15 | 17c15 | 18215 |
| Base 16 | 15616 | 15b16 |