Find the LCM by prime factorisation method 21,28
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Step-by-step explanation:
the lcm of 21 and 28 can be found using the prime factorization of 21 and 28: The prime factorization of 21 is: 3 x 7. The prime factorization of 28 is: 2 x 2 x 7
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Answer:
How to find the LCM of 21 and 28
1) The prime factorization of 21 is: 3 x 7.
2) The prime factorization of 28 is: 2 x 2 x 7.
3) Eliminate the duplicate factors of the two lists, then multiply them once with the remaining factors of the lists to get lcm(21,21) = 84.
Hope this is helpful for you.
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