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If two numbers are 9 and 17, what is the product of their HCF and LCM?

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Question: If two numbers are 9 and 17, what is the product of their HCF and LCM?

  1. 154
  2. 153
  3. 152
  4. 155

Correct Answer: B — 153

Explanation: For two positive integers, HCF × LCM equals their product.
Using the values in this question gives 153 as the correct answer.

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