Question #b0d11

1 Answer
EZ as pi
Mar 11, 2017

#GCF = 13#

Explanation:

Write each term as the product of its prime factors, Then you know what you are dealing with.

#39x = 3 xx 13 xx x#
#143 = " " 13 xx 11#

The only factor they share is #13# so this has to be the GCF.

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