Question

What pair of numbers have a gcf of 7? Choose all that are correct

7 and 14

21 and 3

7 and 1

28 and 7

Answer 1

7 and 14

28 and 7

Explanation:

7/7 = 1

14/7 = 2

28/7 = 4

21 and 3, gcf = 3

7 and 1, gcf = 1

Answer 2

7 and 14

28 and 7

Explanation:

7 & 14's GCF is 7 since it's the largest factor for both of them.

21 & 3's GCF is 3 since it's the largest factor for both of them.

7 & 1's GCF is 1 since it's the largest factor for both of them.

28 & 7's GCF is 7 since it's the largest factor for both of them.