Question

A student is finding the GCF of 6 and 12. Without computing, will the GCF be odd or even? Explain.

Answer 1

Even, 6 times 1 is 6 and 6 times 2 is 12. 6 is larger than 1,2,3, &4

Answer 2

The GCF will be even.

Explanation:

Both numbers are even. Therefore, the GCF must also be even.