Answer
$36=2^2\times3^2$
Work Step by Step
36 is an even number, so it is a multiple of 2.
$36=2\times18$
18 is also an even number, so it is a multiple of 2.
$36=2\times2\times9$
9 is the square of 3.
$36=2\times2\times3\times3=2^2\times3^2$