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What is the LCM of (12), (18), and (30)?
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Answer and explanation
Correct answer: (180)
Step 1: (12=2^2\times3), (18=2\times3^2), and (30=2\times3\times5). Step 2: Use the highest powers (2^2), (3^2), and (5). Step 3: (4\times9\times5=180), so the LCM is (180).
Frequently asked questions
What is the correct answer to this question?
(180)
Why is this the correct answer?
Step 1: (12=2^2\times3), (18=2\times3^2), and (30=2\times3\times5). Step 2: Use the highest powers (2^2), (3^2), and (5). Step 3: (4\times9\times5=180), so the LCM is (180).
Which subject and chapter does this question cover?
This is a Class 10 Mathematics question. Chapter: Real Numbers. Topic: HCF and LCM using prime factorisation.
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