Yes. Two even numbers will have 2 as a factor of each. Thus the GCF will always have 2 as a factor.

GCF(2n, 2m) = 2*GCF(n, m)

GCF(2n, 2m) = 2*GCF(n, m)

GCF(2n, 2m) = 2*GCF(n, m)

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