Compare 149 vs 153
| Property | 149 | 153 |
|---|---|---|
| Type | prime | composite number |
| Unique factors | 1 | 2 |
| Total factors | 1 | 3 |
| Prime factorization | 1491 | 32 × 171 |
| Prime factorization | 149 | 3 × 3 × 17 |
| Divisors count | 2 | 6 |
| Divisors | 1, 149 | 1, 3, 9, 17, 51, 153 |
| Number of properties | 8 | 0 |
| Chen primes | 29th | |
| Emirps | 11th | |
| Good primes | 14th | |
| Harmonic primes | 12th | |
| Long primes | 13th | |
| Primes | 35th | |
| Pythagorean primes | 16th | |
| Twin primes (1st member) | 12th | |
| Roman numberals | CXLIX | CLIII |
| Base 2 | 100101012 | 100110012 |
| Base 3 | 121123 | 122003 |
| Base 4 | 21114 | 21214 |
| Base 5 | 10445 | 11035 |
| Base 6 | 4056 | 4136 |
| Base 7 | 3027 | 3067 |
| Base 8 | 2258 | 2318 |
| Base 9 | 1759 | 1809 |
| Base 10 | 14910 | 15310 |
| Base 11 | 12611 | 12a11 |
| Base 12 | 10512 | 10912 |
| Base 13 | b613 | ba13 |
| Base 14 | a914 | ad14 |
| Base 15 | 9e15 | a315 |
| Base 16 | 9516 | 9916 |