Find the common factors of 10 and 30
1, 5
1, 10
1, 2, 5, 10
1, 2
Factors of 10 are 1, 2, 5 and 10.
Factors of 30 are 1, 2, 3, 5, 6, 10, 15, 30.
Common factors are: 1, 2, 5, 10