Compare 4 vs 6
| Property | 4 | 6 | 
|---|---|---|
| Type | semiprime | semiprime | 
| Unique factors | 1 | 2 | 
| Total factors | 2 | 2 | 
| Prime factorization | 22 | 21 × 31 | 
| Prime factorization | 2 × 2 | 2 × 3 | 
| Divisors count | 3 | 4 | 
| Divisors | 1, 2, 4 | 1, 2, 3, 6 | 
| Number of properties | 1 | 1 | 
| Semiprimes | 1st | 2nd | 
| Roman numberals | IV | VI | 
| Base 2 | 1002 | 1102 | 
| Base 3 | 113 | 203 | 
| Base 4 | 104 | 124 | 
| Base 5 | 45 | 115 | 
| Base 6 | 46 | 106 | 
| Base 7 | 47 | 67 | 
| Base 8 | 48 | 68 | 
| Base 9 | 49 | 69 | 
| Base 10 | 410 | 610 | 
| Base 11 | 411 | 611 | 
| Base 12 | 412 | 612 | 
| Base 13 | 413 | 613 | 
| Base 14 | 414 | 614 | 
| Base 15 | 415 | 615 | 
| Base 16 | 416 | 616 |