Question 1 of 100

List all the common factors of 30 and 60.

A
1, 2, 3, 4, 5, 6, 10, 15
B
1, 2, 3, 5, 6, 10, 15, 30
C
1, 2, 3, 5, 6, 7, 10, 30
D
2, 3, 5, 6, 10, 15, 30