What are the common factors of 7 and 28?

Answer 1

Best Answer - Chosen by Asker

7 = (7) x 1
28 = (7) x 2 x 2

7 is the only common factor besides 1.

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Asker's Comment:

thnks so much

Answer 2

The common factors are 1 and 7. This is because seven has no factors aside from 1 and 7.

Unless you meant which number time seven is twenty-eight, in which case the answer is four.

Answer 3

7 and 1

Source(s):

In Algebra Honors, just went over GCF

Answer 4

1 and 7.

Answer 5

Read the book.