Find the GCF and LCM using prime factorization

Find the GCF and LCM using prime factorization

Assessment

Interactive Video

Mathematics

1st - 6th Grade

Hard

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This video tutorial explains how to find the greatest common factor (GCF) and least common multiple (LCM) of two whole numbers using their prime factors. It covers the concepts of prime and composite numbers, demonstrates the use of factor trees for prime factorization, and clarifies common misunderstandings between factors and multiples. The tutorial provides step-by-step examples of finding the GCF and LCM for the numbers 8 and 30, as well as 18 and 27, using Venn diagrams to compare prime factors.

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OPEN ENDED QUESTION

3 mins • 1 pt

What new insight or understanding did you gain from this video?

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