Select all numbers from the list that are factors of 360.
Note
360 divided by 12, 15, 18, and 20 yields integers (30, 24, 20, and 18 respectively), so they are factors; 360 ÷ 21 is not an integer, so 21 is not a factor.
Select all numbers from the list that are factors of 360.
360 divided by 12, 15, 18, and 20 yields integers (30, 24, 20, and 18 respectively), so they are factors; 360 ÷ 21 is not an integer, so 21 is not a factor.