GCF

= To find the GCF of a number it is a lot like the LCM. Like so... =

= FIND THE FACTORS; = = 1, 3,9,27 = = 1,2,3,4,6,8,9,12,18,24,36,72 = = THEN THE COMMON FACTORS, AT LAST THE GREATEST. = = The GCF for 27 and 72 is 9 =