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10 of 25
Which one of these numbers is not a common factor of 12 and 24?
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(A) 5
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(B) 2
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(C) 4
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(D) 3
That's Correct!
It's Wrong!
The number 5 is not a common factor of 12 and 24 because it does not divide evenly into either of them. Both 12 and 24 are divisible by 2, 4, and 3, but not by 5. Therefore, 5 is not a common factor of 12 and 24.