Question

Find four common multiples of $8$ and $12$.

Answer 1

To find common multiples, we need to calculate $LCM$ of both numbers,

Factors of both numbers are as follows:

$8=2\times 2\times 2$

$12=2\times 2\times 3$

Hence, $LCM=2\times 2\times 2\times 3$

$=24$

Multiples of $24$ will be common multiples of $8$ and $12$.

Hence, four common multiples of $8$ and $12$ are $24,48,72$ and $96.$