Compare 161 vs 171
| Property | 161 | 171 |
|---|---|---|
| Type | semiprime | composite number |
| Unique factors | 2 | 2 |
| Total factors | 2 | 3 |
| Prime factorization | 71 × 231 | 32 × 191 |
| Prime factorization | 7 × 23 | 3 × 3 × 19 |
| Divisors count | 4 | 6 |
| Divisors | 1, 7, 23, 161 | 1, 3, 9, 19, 57, 171 |
| Number of properties | 1 | 0 |
| Semiprimes | 54th | |
| Roman numberals | CLXI | CLXXI |
| Base 2 | 101000012 | 101010112 |
| Base 3 | 122223 | 201003 |
| Base 4 | 22014 | 22234 |
| Base 5 | 11215 | 11415 |
| Base 6 | 4256 | 4436 |
| Base 7 | 3207 | 3337 |
| Base 8 | 2418 | 2538 |
| Base 9 | 1889 | 2109 |
| Base 10 | 16110 | 17110 |
| Base 11 | 13711 | 14611 |
| Base 12 | 11512 | 12312 |
| Base 13 | c513 | 10213 |
| Base 14 | b714 | c314 |
| Base 15 | ab15 | b615 |
| Base 16 | a116 | ab16 |