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Question : The Least Common Multiple of three different numbers is 40. Which of the following cannot be their Highest Common Factor?

Option 1: 20

Option 2: 25

Option 3: 5

Option 4: 10


Team Careers360 23rd Jan, 2024
Answer (1)
Team Careers360 25th Jan, 2024

Correct Answer: 25


Solution : Given: The Least Common Multiple of three different numbers is 40.
The HCF of those numbers must be a factor of that LCM too.
From the given options only 25 is not a factor of 40.
So, 25 can't be the HCF.
Hence, the correct answer is 25.

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