Compare 349 vs 491
| Property | 349 | 491 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 3491 | 4911 |
| Prime factorization | 349 | 491 |
| Divisors count | 2 | 2 |
| Divisors | 1, 349 | 1, 491 |
| Number of properties | 7 | 7 |
| Chen primes | 66th | |
| Cousin primes (1st member) | 20th | |
| Cousin primes (2nd member) | 26th | |
| Harmonic primes | 30th | 38th |
| Isolated primes | 47th | |
| Long primes | 34th | |
| Lucky primes | 20th | |
| Primes | 70th | 94th |
| Prime triplets (2nd member) | 20th | |
| Pythagorean primes | 33rd | |
| Sophie germain primes | 25th | |
| Twin primes (2nd member) | 21st | |
| Roman numberals | CCCXLIX | CDXCI |
| Base 2 | 1010111012 | 1111010112 |
| Base 3 | 1102213 | 2000123 |
| Base 4 | 111314 | 132234 |
| Base 5 | 23445 | 34315 |
| Base 6 | 13416 | 21356 |
| Base 7 | 10067 | 13017 |
| Base 8 | 5358 | 7538 |
| Base 9 | 4279 | 6059 |
| Base 10 | 34910 | 49110 |
| Base 11 | 29811 | 40711 |
| Base 12 | 25112 | 34b12 |
| Base 13 | 20b13 | 2ba13 |
| Base 14 | 1ad14 | 27114 |
| Base 15 | 18415 | 22b15 |
| Base 16 | 15d16 | 1eb16 |