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Using prime factorization find the lcm and GCF of 21 and 5
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Using prime factorization find the lcm and GCF of 21 and 5

User RTYX
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The prime factorization of 21 is: 3 x 7The prime factorization of 5 is: 5Eliminate the duplicate factors of the two lists, then multiply them once with the remaining factors of the lists to get lcm(21,21) = 105
User Ibrahim Ahmed
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