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Bot GPT 3.5 To find the greatest common factor (GCF) of 42m-28n, we can first simplify the expression by factoring out the greatest common factor of the coefficients (42 and 28), which is 14:
42m - 28n = 14(3m - 2n)
Now, we can see that the GCF of 42m-28n is 14.