Question

The set of factors of 18 is?
(A) (1, 18)
(B) (2, 3,6, 9)
(C) (1, 2, 3, 6, 9, 18)
(D) (18, 36, 54...)

Answer 1

@Hillory do you understand what a "factor" of a number is? You are just looking for all of the numbers that divide 18 evenly.

You can always start with 1 and the number itself, and then go from there. A number is a factor of 18 if you can multiply something by that number, and get 18.