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Question
Find the LCM set of numbers using prime factorisation method.
14, 42
Solution
14, 42
14 = 2 × 7
42 = 2 × 21
= 2 × 3 × 7
Product of common factors = 2 × 7
Product of other factor = 3
LCM (14, 42) = Product of common factors × Product of other factors
= 2 × 7 × 3
= 42
LCM (14, 42) = 42
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