Question

Find the LCM:
$15,20$

Answer 1

Given numbers $15,20$
As we have,

Since, $3$ and $4$ are not divisible by the same number, so the process ends at the first step itself.
Thus, LCM $=5\times 3\times 4$
$=60$
Hence, the L.C.M of the given numbers is $60$