# How do you find the greatest common factor of 30, 60?

Nov 3, 2016

The greatest common factor (GCF) of 30 and 60 is $\textcolor{g r e e n}{30}$.
$30 :$ $1 , 2 , 3 , 5 , 6 , 10 , 15 , \textcolor{g r e e n}{30}$
$60 :$ $1 , 2 , 3 , 5 , 6 , 10 , 12 , 15 , 20 , \textcolor{g r e e n}{30} , 60$
The greatest common factor is $\textcolor{g r e e n}{30}$.