Lemma
EasyGCD & LCM
OpenStax, Elementary Algebra 2e §7.1 Greatest Common Factor and Factor by Grouping · Exercise 3 · Number Theory · GCD & LCM

Greatest Common Factor and Factor by Grouping · Exercise 3

Find the greatest common factor.

72, 162

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OpenStax, Elementary Algebra 2e · §7.1 Greatest Common Factor and Factor by Grouping · Exercise 3

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Checked against the answer in OpenStax, Elementary Algebra 2e.