Multiple choice

Which of the following sets of numbers will have LCM equal to 672?

  1. 84 and 32

  2. 89 and 35

  3. 84 and 36

  4. 94 and 32
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A Correct answer
Explanation

Factors of 84 = 2 × 2 × 3 × 7 Factors of 32 = 2 × 2 × 2 × 2 × 2 LCM = 2 × 2 × 3 × 7 × 2 × 2 × 2 = 672

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