What are the common factors of 28 and 42?

Answer 1

The common factors of 28 and 42 are: 1, 2, 7, and 14
The factors of 28 are:

1, 2, 4, 7, 14, 28

The factors of 42 are:

1, 2, 3, 6, 7, 14, 21, 42

The common factors are: 1, 2, 7, 14

Answer 2

42
1,42
2,21
3,14
6,7
28
1,28
2,14
4,7
Common factors ->1,2,7,14
The greatest common factor of the numbers 28 and 42 is 14.