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How do you find the LCM with two numbers using prime factorization?
Wiki User
∙ 9y ago
Example: 30 and 42
Factor them.
2 x 3 x 5 = 30
2 x 3 x 7 = 42
Combine the factors, eliminating duplicates.
2 x 3 x 5 x 7 = 210, the LCM
Wiki User
∙ 9y ago
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