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Find the HCF of 132, 204 and 228.

12
18
6
21

Correct Answer: 12

Explanation:

132 = 2 x 2 x 3 x 11
240 = 2 x 2 x 2 x 2 x 3 x 5
228 = 2 x 2 x 3 x 19
Hence, HCF of 132, 204 and 228 = 2 x 2 x 3 = 12

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