The common factors of 20 and 15 are () and the greatest common factor is (). The common factors of 8 and 12 are () and the greatest common factor is () emergency

The common factors of 20 and 15 are () and the greatest common factor is (). The common factors of 8 and 12 are () and the greatest common factor is () emergency

The common factors of 20 and 15 are (1 and 5), and the greatest common factor is (5). The common factors of 8 and 12 are (1, 2, 4), and the greatest common factor is (4)