Question

find the GCD of 72and 108

Answer 1

$72 = {2}^{3} \times 3 {}^{2}$
$108 = {2}^{2} \times {3}^{3}$
So GCD(72,108)=
${2}^{2} \times {3}^{2}$
=36
Therefore, GCD (72,108) =36