Question: The product of two numbers is 720 and their Highest common factor is 4. What is the Least common multiplier of these numbers?

  1. 120
  2. 480
  3. 180
  4. 240

Answer: 3. 180

Solution:
product of two numbers= HCF X LCM
720= 4 LCM
LCM= 180

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