2 Answers

Todd Price · Answer 1 · 2020-08-28T01:45:20+0000

For this case we have that by definition, the Greatest Common Factor (GCF) is the largest factor that 2 numbers have in common.

So, we have the following expressions:

$42a ^ 5b ^ 3\\35a ^ 3b ^ 4\\42ab ^ 4$

We look for the positive integers that divide to 35 and 42 without leaving residue:

42: 1,2,3,6,7,14,21

35: 1,5,7

Thus, the GCF of 42 and 35 is 7

Then, the GCF of the three expressions is:

7ab ^ 3

Answer:

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