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

1 Answer
Nov 3, 2016

Answer:

The greatest common factor (GCF) of 30 and 60 is #color(green)(30)#.

Explanation:

Factor both numbers.

#30:# #1,2,3,5,6,10,15,color(green)(30)#
#60:# #1,2,3,5,6,10,12,15,20,color(green)(30),60#

The greatest common factor is #color(green)(30)#.