Compare 143 vs 161
| Property | 143 | 161 |
|---|---|---|
| Type | semiprime | semiprime |
| Unique factors | 2 | 2 |
| Total factors | 2 | 2 |
| Prime factorization | 111 × 131 | 71 × 231 |
| Prime factorization | 11 × 13 | 7 × 23 |
| Divisors count | 4 | 4 |
| Divisors | 1, 11, 13, 143 | 1, 7, 23, 161 |
| Number of properties | 1 | 1 |
| Semiprimes | 48th | 54th |
| Roman numberals | CXLIII | CLXI |
| Base 2 | 100011112 | 101000012 |
| Base 3 | 120223 | 122223 |
| Base 4 | 20334 | 22014 |
| Base 5 | 10335 | 11215 |
| Base 6 | 3556 | 4256 |
| Base 7 | 2637 | 3207 |
| Base 8 | 2178 | 2418 |
| Base 9 | 1689 | 1889 |
| Base 10 | 14310 | 16110 |
| Base 11 | 12011 | 13711 |
| Base 12 | bb12 | 11512 |
| Base 13 | b013 | c513 |
| Base 14 | a314 | b714 |
| Base 15 | 9815 | ab15 |
| Base 16 | 8f16 | a116 |