Compare 28 vs 35
| Property | 28 | 35 |
|---|---|---|
| Type | composite number | semiprime |
| Unique factors | 2 | 2 |
| Total factors | 3 | 2 |
| Prime factorization | 22 × 71 | 51 × 71 |
| Prime factorization | 2 × 2 × 7 | 5 × 7 |
| Divisors count | 6 | 4 |
| Divisors | 1, 2, 4, 7, 14, 28 | 1, 5, 7, 35 |
| Number of properties | 0 | 1 |
| Semiprimes | 13th | |
| Roman numberals | XXVIII | XXXV |
| Base 2 | 111002 | 1000112 |
| Base 3 | 10013 | 10223 |
| Base 4 | 1304 | 2034 |
| Base 5 | 1035 | 1205 |
| Base 6 | 446 | 556 |
| Base 7 | 407 | 507 |
| Base 8 | 348 | 438 |
| Base 9 | 319 | 389 |
| Base 10 | 2810 | 3510 |
| Base 11 | 2611 | 3211 |
| Base 12 | 2412 | 2b12 |
| Base 13 | 2213 | 2913 |
| Base 14 | 2014 | 2714 |
| Base 15 | 1d15 | 2515 |
| Base 16 | 1c16 | 2316 |