Compare 347 vs 409
| Property | 347 | 409 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 3471 | 4091 |
| Prime factorization | 347 | 409 |
| Divisors count | 2 | 2 |
| Divisors | 1, 347 | 1, 409 |
| Number of properties | 10 | 9 |
| Additive primes | 47th | |
| Centered triangular primes | 5th | |
| Chen primes | 51st | 57th |
| Emirps | 18th | |
| Good primes | 25th | |
| Happy primes | 22nd | |
| Isolated primes | 39th | |
| Left-truncatable primes | 26th | |
| Lucky primes | 22nd | |
| Primes | 69th | 80th |
| Prime triplets (1st member) | 20th | |
| Pythagorean primes | 39th | |
| Safe primes | 13th | |
| Sexy primes (1st member) | 38th | |
| Sexy prime triplets (1st member) | 18th | |
| Twin primes (1st member) | 21st | |
| Ulam primes | 11th | |
| Roman numberals | CCCXLVII | CDIX |
| Base 2 | 1010110112 | 1100110012 |
| Base 3 | 1102123 | 1200113 |
| Base 4 | 111234 | 121214 |
| Base 5 | 23425 | 31145 |
| Base 6 | 13356 | 15216 |
| Base 7 | 10047 | 11237 |
| Base 8 | 5338 | 6318 |
| Base 9 | 4259 | 5049 |
| Base 10 | 34710 | 40910 |
| Base 11 | 29611 | 34211 |
| Base 12 | 24b12 | 2a112 |
| Base 13 | 20913 | 25613 |
| Base 14 | 1ab14 | 21314 |
| Base 15 | 18215 | 1c415 |
| Base 16 | 15b16 | 19916 |