Question

Find the $L.C.M$ of $28,36$ and $60$.

Answer 1

We have,

$28=4\times 7$,

$36=4\times 3\times 3$

and $60=4\times 3\times 5$.

Then $L.C.M$ of $28,36,60$ is $4\times 3\times 7\times 3\times 5=1260$.