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23 June, 21:42

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

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  1. 23 June, 23:54
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    The prime factorization of 21 is: 3 x 7The prime factorization of 5 is: 5 Eliminate the duplicate factors of the two lists, then multiply them once with the remaining factors of the lists to get lcm (21,21) = 105
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