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Anonymous
The GCF of an odd and even number is never even.
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No, always odd. Since odd numbers don't have any even factors, they can't have any in common.
No, always odd.
No, never.
No, it is not.
No not always as for example the GCF of 7 and 21 is 7
No. The GCF of 6 and 15 is 3.
No, the GCF of 6 and 7 is 1.
No, their GCF is always odd.