no, it was not!
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The GCF of 4, 6, 9, and 8 is 1 because 4 is 2 * 2 and 9 is 3 * 3, so 1 is the only thing that will go into 4, 6, 9, and 8 evenly.

0 is weird.  From this page ( http://math.info/Arithmetic/GCF/ ), "GCF(a, 0) = |a|, for a ≠ 0, since any number is a divisor of 0, and the greatest divisor of a is |a|."

But since the GCF of 4, 6, 9, 8 is 1, the GCF of 4, 6, 9, 0, 8 is still just 1.

by Level 13 User (103k points)

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