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which list shows all the factors of 18?
ooo
1, 2, 3, 4, 6, 9, 18
1, 2, 3, 6, 9, 18
2,3,4,6,9
2,3,6,9

The answer is B.

Explanation:

First we multiply each numbers by each other, lets start with option A.

1 x 18 = 18

2 x 9 = 18

3 x 6 = 18

4 x ? = ?

as you can see 4 has nothing to multiply by, so next option.

1 x 18 = 18

2 x 9 = 18

3 x 6 = 18

and nothing left over so it is correct.

the last options are obviously not it because they dont have 1 or the number we are finding the factors of (18) and they are always there so the options C & D are incorrect.

Thus, Option A, C, and D are incorrect, B is correct. '

hope this helps. :)

step-by-step explanation: