Compare 1522 vs 1561
| Property | 1522 | 1561 |
|---|---|---|
| Type | semiprime | semiprime |
| Unique factors | 2 | 2 |
| Total factors | 2 | 2 |
| Prime factorization | 21 × 7611 | 71 × 2231 |
| Prime factorization | 2 × 761 | 7 × 223 |
| Divisors count | 4 | 4 |
| Divisors | 1, 2, 761, 1522 | 1, 7, 223, 1561 |
| Number of properties | 1 | 1 |
| Semiprimes | 444th | 453rd |
| Roman numberals | MDXXII | MDLXI |
| Base 2 | 101111100102 | 110000110012 |
| Base 3 | 20021013 | 20102113 |
| Base 4 | 1133024 | 1201214 |
| Base 5 | 220425 | 222215 |
| Base 6 | 110146 | 111216 |
| Base 7 | 43037 | 43607 |
| Base 8 | 27628 | 30318 |
| Base 9 | 20719 | 21249 |
| Base 10 | 152210 | 156110 |
| Base 11 | 116411 | 119a11 |
| Base 12 | a6a12 | aa112 |
| Base 13 | 90113 | 93113 |
| Base 14 | 7aa14 | 7d714 |
| Base 15 | 6b715 | 6e115 |
| Base 16 | 5f216 | 61916 |