Find the LCM of the following numbers by prime factorisation method.
(i) 12 and 15
(ii) 15 and 25
(iii) 14 and 21
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Answer:
12 and 15 =60
15 and 25=75
14 and 21 =42
Step-by-step explanation:
prime factors 14= 2 ×7
prime factors 21=3×7
LCM=2×3×7=42
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