Compare 161 vs 201
| Property | 161 | 201 |
|---|---|---|
| Type | semiprime | semiprime |
| Unique factors | 2 | 2 |
| Total factors | 2 | 2 |
| Prime factorization | 71 × 231 | 31 × 671 |
| Prime factorization | 7 × 23 | 3 × 67 |
| Divisors count | 4 | 4 |
| Divisors | 1, 7, 23, 161 | 1, 3, 67, 201 |
| Number of properties | 1 | 1 |
| Semiprimes | 54th | 63rd |
| Roman numberals | CLXI | CCI |
| Base 2 | 101000012 | 110010012 |
| Base 3 | 122223 | 211103 |
| Base 4 | 22014 | 30214 |
| Base 5 | 11215 | 13015 |
| Base 6 | 4256 | 5336 |
| Base 7 | 3207 | 4057 |
| Base 8 | 2418 | 3118 |
| Base 9 | 1889 | 2439 |
| Base 10 | 16110 | 20110 |
| Base 11 | 13711 | 17311 |
| Base 12 | 11512 | 14912 |
| Base 13 | c513 | 12613 |
| Base 14 | b714 | 10514 |
| Base 15 | ab15 | d615 |
| Base 16 | a116 | c916 |