Question : What is the Highest Common Factor of 25, 40, and 60?
Option 1: 10
Option 2: 12
Option 3: 8
Option 4: 5
Answer (1)
24th Jan, 2024
Correct Answer: 5
Solution :
Prime factorisation of 25 =5 × 5
Prime factorisation of 40 = 2 × 2 × 2 × 5
Prime factorisation of 60 = 2 × 2 × 3 × 5
So, HCF of 25, 40, and 60 = 5
Hence, the correct answer is 5.
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