Lesson eLearning

What is the least common multiple of 8 and 12?

medium 2 marks Class 5 · Mathematics · Be My Multiple I Will Be Your Factor
Answer
24

The correct answer is 24 — Thus LCM is 24.

Step-by-step solution

  1. Prime factorise 8 → .
  2. Prime factorise 12 → .
  3. Take highest power of each prime: and .
  4. Multiply .
  5. Thus LCM is 24.
Common mistake: Using wrong highest power of 2 or 3

Concept tested: Least common multiple of two numbers

Published · How this solution was prepared and checked

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