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No, 12 is not a factor of 28 or 42. The GCF is 14.
Wiki User
∙ 8y agoThis answer is:
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Wiki User
∙ 9y agoNo.
The prime factors are:
42 = 2 * 3 * 7
28 = 2 * 2 *7
So the greatest common factor would be 2 * 7 = 14
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