Compare 149 vs 347
| Property | 149 | 347 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 1491 | 3471 |
| Prime factorization | 149 | 347 |
| Divisors count | 2 | 2 |
| Divisors | 1, 149 | 1, 347 |
| Number of properties | 8 | 10 |
| Chen primes | 29th | 51st |
| Emirps | 11th | 18th |
| Good primes | 14th | 25th |
| Harmonic primes | 12th | |
| Left-truncatable primes | 26th | |
| Long primes | 13th | |
| Primes | 35th | 69th |
| Prime triplets (1st member) | 20th | |
| Pythagorean primes | 16th | |
| Safe primes | 13th | |
| Sexy primes (1st member) | 38th | |
| Sexy prime triplets (1st member) | 18th | |
| Twin primes (1st member) | 12th | 21st |
| Roman numberals | CXLIX | CCCXLVII |
| Base 2 | 100101012 | 1010110112 |
| Base 3 | 121123 | 1102123 |
| Base 4 | 21114 | 111234 |
| Base 5 | 10445 | 23425 |
| Base 6 | 4056 | 13356 |
| Base 7 | 3027 | 10047 |
| Base 8 | 2258 | 5338 |
| Base 9 | 1759 | 4259 |
| Base 10 | 14910 | 34710 |
| Base 11 | 12611 | 29611 |
| Base 12 | 10512 | 24b12 |
| Base 13 | b613 | 20913 |
| Base 14 | a914 | 1ab14 |
| Base 15 | 9e15 | 18215 |
| Base 16 | 9516 | 15b16 |