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If two numbers are 18 and 10, what is the product of their HCF and LCM?

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Question: If two numbers are 18 and 10, what is the product of their HCF and LCM?

  1. 180
  2. 181
  3. 179
  4. 182

Correct Answer: A — 180

Explanation: For two positive integers, HCF × LCM equals their product.
Using the values in this question gives 180 as the correct answer.

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