Compare 18 vs 27
| Property | 18 | 27 |
|---|---|---|
| Type | composite number | composite number |
| Unique factors | 2 | 1 |
| Total factors | 3 | 3 |
| Prime factorization | 21 × 32 | 33 |
| Prime factorization | 2 × 3 × 3 | 3 × 3 × 3 |
| Divisors count | 6 | 4 |
| Divisors | 1, 2, 3, 6, 9, 18 | 1, 3, 9, 27 |
| Number of properties | 0 | 0 |
| Roman numberals | XVIII | XXVII |
| Base 2 | 100102 | 110112 |
| Base 3 | 2003 | 10003 |
| Base 4 | 1024 | 1234 |
| Base 5 | 335 | 1025 |
| Base 6 | 306 | 436 |
| Base 7 | 247 | 367 |
| Base 8 | 228 | 338 |
| Base 9 | 209 | 309 |
| Base 10 | 1810 | 2710 |
| Base 11 | 1711 | 2511 |
| Base 12 | 1612 | 2312 |
| Base 13 | 1513 | 2113 |
| Base 14 | 1414 | 1d14 |
| Base 15 | 1315 | 1c15 |
| Base 16 | 1216 | 1b16 |