Question

Question 87 (viii)

Write the greatest common factor in the following terms.

$63p^2{a}^2{r}^{2}s,-9p{q}^2{r}^2{s}^2,15p^{2}q{r}^2{s}^2,-60p^2{a}^{2}r{s}^2$

Answer 1

We have,
$63p^2{a}^2{r}^{2}s=3\times 3\times 7\times p\times p\times a\times a\times r\times r\times s-9p{q}^2{r}^2{s}^2=-1\times 3\times 3\times p\times q\times q\times r\times r\times s\times s15p^{2}q{r}^2{s}^2=3\times 5\times p\times p\times q\times r\times r\times s\times s-60p^2{a}^{2}r{s}^2=-1\times 2\times 2\times 3\times 5\times p\times p\times a\times a\times r\times s\times s\therefore GCF=3prs$