Answer
6
Work Step by Step
To find the GCF, factor each number. The product of the common factors is the greatest common factor.
$24=\underline2\times2\times2\times\underline3$
$30=\underline2\times\underline3\times5$
$60=\underline2\times2\times\underline3\times5$
$GCF=2\times3=6$