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What is the LCM of 8, 12, and 15?

Practice Questions

Q1
What is the LCM of 8, 12, and 15?
  1. 120
  2. 60
  3. 30
  4. 90

Questions & Step-by-Step Solutions

What is the LCM of 8, 12, and 15?
Correct Answer: 120
  • Step 1: List the multiples of each number.
  • Multiples of 8: 8, 16, 24, 32, 40, 48, 56, 64, 72, 80, 88, 96, 104, 112, 120, ...
  • Multiples of 12: 12, 24, 36, 48, 60, 72, 84, 96, 108, 120, ...
  • Multiples of 15: 15, 30, 45, 60, 75, 90, 105, 120, ...
  • Step 2: Find the smallest number that appears in all three lists of multiples.
  • The smallest common multiple in all three lists is 120.
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