Question

Find $HCF$ by finding factors:
$24,60$ and $84$.

Answer 1

After prime factorization of the given numbers.

$24=2\times 2\times 2\times 3$

$60=2\times 2\times 3\times 5$

$84=2\times 2\times 3\times 7$

Since, the common factor is $1,2,2,3.$

$HCF=2\times 2\times 3$

$=12$