Compare 8 vs 28
| Property | 8 | 28 | 
|---|---|---|
| Type | composite number | composite number | 
| Unique factors | 1 | 2 | 
| Total factors | 3 | 3 | 
| Prime factorization | 23 | 22 × 71 | 
| Prime factorization | 2 × 2 × 2 | 2 × 2 × 7 | 
| Divisors count | 4 | 6 | 
| Divisors | 1, 2, 4, 8 | 1, 2, 4, 7, 14, 28 | 
| Number of properties | 0 | 0 | 
| Roman numberals | VIII | XXVIII | 
| Base 2 | 10002 | 111002 | 
| Base 3 | 223 | 10013 | 
| Base 4 | 204 | 1304 | 
| Base 5 | 135 | 1035 | 
| Base 6 | 126 | 446 | 
| Base 7 | 117 | 407 | 
| Base 8 | 108 | 348 | 
| Base 9 | 89 | 319 | 
| Base 10 | 810 | 2810 | 
| Base 11 | 811 | 2611 | 
| Base 12 | 812 | 2412 | 
| Base 13 | 813 | 2213 | 
| Base 14 | 814 | 2014 | 
| Base 15 | 815 | 1d15 | 
| Base 16 | 816 | 1c16 |