Question

The common factors of 81 and 63 are

Answer 1

Answer: all you do is find out all the factors of that number. Then you look to see if there is a factor that is the same for the other number. The answer is 1,3,9. So the common factors are 1,3,9.

Explanation:

Answer 2

9, 3, 1

Explanation:

Factors of 81:

1

3

9

81

Factors of 63:

1

3

7

9

63

What numbers do both of these have?

1

3

9

Hope this helps! :)