Question : Find the HCF of 78, 84, 90 and 112.
Option 1: 1
Option 2: 2
Option 3: 5
Option 4: 7
Answer (1)
21st Jan, 2024
Correct Answer: 2
Solution :
Prime factorization of given numbers
78 = 2 × 3 × 13
84 = 2 × 2 × 3 × 7
90 = 2 × 3 × 3 × 5
112 = 2 × 2 × 2 × 2 × 7
Now,
HCF = 2
Hence, the correct answer is 2
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