Find the highest common factor of 36 and 84.

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Question

Find the highest common factor of 36 and 84.

Options:

A . 4

B . 6

C . 12

D . 18

Answer: Option D

36 = 2² x 3²

84 = 2² x 3 x 7

Therefore H.C.F. = 2² x 3 = 12.

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