The product of two numbers is 720 and their Highest Common Factor is 4. What is the Least Common Multiple of these numbers?
Show answer & explanation
Correct answer: C
Explanation
The correct answer is option 3 i.e. 180.
The product of two numbers = 720
The Highest Common Factor (HCF) of the two numbers = 4
So
HCF × LCM = Product of the two numbers
⇒ 4 × LCM = 720
⇒ LCM = 720/4 = 180