What is the least common multiple (LCM) of 12, 18 and 24?
Correct answer: C. 72
Prime factors: 12 = 2² × 3, 18 = 2 × 3², 24 = 2³ × 3. Take the highest power of each prime: 2³ × 3² = 72. Check: 72 is divisible by 12, 18 and 24.
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Answer and explanation
The correct answer is C. 72
Prime factors: 12 = 2² × 3, 18 = 2 × 3², 24 = 2³ × 3. Take the highest power of each prime: 2³ × 3² = 72. Check: 72 is divisible by 12, 18 and 24.
Topic: Basic Operations and Number Sequence MCQs · Subject: Numerical Ability