Compare 1655 vs 1667
| Property | 1655 | 1667 |
|---|---|---|
| Type | semiprime | prime |
| Unique factors | 2 | 1 |
| Total factors | 2 | 1 |
| Prime factorization | 51 × 3311 | 16671 |
| Prime factorization | 5 × 331 | 1667 |
| Divisors count | 4 | 2 |
| Divisors | 1, 5, 331, 1655 | 1, 1667 |
| Number of properties | 1 | 6 |
| Chen primes | 165th | |
| Cousin primes (2nd member) | 59th | |
| Harmonic primes | 92nd | |
| Primes | 262nd | |
| Prime triplets (2nd member) | 43rd | |
| Semiprimes | 477th | |
| Twin primes (1st member) | 53rd | |
| Roman numberals | MDCLV | MDCLXVII |
| Base 2 | 110011101112 | 110100000112 |
| Base 3 | 20210223 | 20212023 |
| Base 4 | 1213134 | 1220034 |
| Base 5 | 231105 | 231325 |
| Base 6 | 113556 | 114156 |
| Base 7 | 45537 | 46017 |
| Base 8 | 31678 | 32038 |
| Base 9 | 22389 | 22529 |
| Base 10 | 165510 | 166710 |
| Base 11 | 127511 | 128611 |
| Base 12 | b5b12 | b6b12 |
| Base 13 | 9a413 | 9b313 |
| Base 14 | 86314 | 87114 |
| Base 15 | 75515 | 76215 |
| Base 16 | 67716 | 68316 |