Compare 138 vs 143
| Property | 138 | 143 |
|---|---|---|
| Type | composite number | semiprime |
| Unique factors | 3 | 2 |
| Total factors | 3 | 2 |
| Prime factorization | 21 × 31 × 231 | 111 × 131 |
| Prime factorization | 2 × 3 × 23 | 11 × 13 |
| Divisors count | 8 | 4 |
| Divisors | 1, 2, 3, 6, 23, 46, 69, 138 | 1, 11, 13, 143 |
| Number of properties | 0 | 1 |
| Semiprimes | 48th | |
| Roman numberals | CXXXVIII | CXLIII |
| Base 2 | 100010102 | 100011112 |
| Base 3 | 120103 | 120223 |
| Base 4 | 20224 | 20334 |
| Base 5 | 10235 | 10335 |
| Base 6 | 3506 | 3556 |
| Base 7 | 2557 | 2637 |
| Base 8 | 2128 | 2178 |
| Base 9 | 1639 | 1689 |
| Base 10 | 13810 | 14310 |
| Base 11 | 11611 | 12011 |
| Base 12 | b612 | bb12 |
| Base 13 | a813 | b013 |
| Base 14 | 9c14 | a314 |
| Base 15 | 9315 | 9815 |
| Base 16 | 8a16 | 8f16 |