Math

FInd the GCF 12, 21 =

Asked by AnneS2 12 years ago 6/10/2013 5:44 AM

Last updated by anonymous 12 years ago 6/11/2013 10:51 AM

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Answered by CherieS 12 years ago 6/11/2013 10:51 AM

Find the prime factors of both number

12 2*2*3

21 3*7

3

The GCF =product of the shared factors=3