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HCF

Which of the ...

Question

Which of the following is the greatest common factor of 12 and 30?

A

12

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B

30

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C

5

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D

6

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Solution

The correct option is D 6
Factors of 12 are 1, 2, 3, 4, 6, and 12.

Factors of 30 are 1, 2, 3, 5, 6, 10, 15, 30.

The highest common factor of 12 and 30 is 6.

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