What is the GCF of 40, 14, 21?

Just want to know what the GCF is and how to figure to GCF out
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2 Answers

40 = 2*2*2*5

14 = 2*7

21 = 3*7

there is no common factor between all three numbers GCF = 0

by Level 10 User (55.7k points)
Actually, the GCF would be 1.
by

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