Compare 4 vs 49
| Property | 4 | 49 |
|---|---|---|
| Type | semiprime | semiprime |
| Unique factors | 1 | 1 |
| Total factors | 2 | 2 |
| Prime factorization | 22 | 72 |
| Prime factorization | 2 × 2 | 7 × 7 |
| Divisors count | 3 | 3 |
| Divisors | 1, 2, 4 | 1, 7, 49 |
| Number of properties | 1 | 1 |
| Semiprimes | 1st | 17th |
| Roman numberals | IV | XLIX |
| Base 2 | 1002 | 1100012 |
| Base 3 | 113 | 12113 |
| Base 4 | 104 | 3014 |
| Base 5 | 45 | 1445 |
| Base 6 | 46 | 1216 |
| Base 7 | 47 | 1007 |
| Base 8 | 48 | 618 |
| Base 9 | 49 | 549 |
| Base 10 | 410 | 4910 |
| Base 11 | 411 | 4511 |
| Base 12 | 412 | 4112 |
| Base 13 | 413 | 3a13 |
| Base 14 | 414 | 3714 |
| Base 15 | 415 | 3415 |
| Base 16 | 416 | 3116 |