Question : What is the Highest Common Factor of 25, 15, and 75?
Option 1: 7
Option 2: 15
Option 3: 25
Option 4: 5
Correct Answer: 5
Solution :
25 = 5 × 5
15 = 3 × 5
75 = 5 × 5 × 3
HCF of 25, 15, and 75 is 5.
Hence, the correct answer is 5.
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