write all the factors of 27. use commas to separate them.

Explanation:

Step1: Recall factor - definition

A factor of a number divides the number evenly.

Step2: Start from 1

1 is a factor of every number, and (27\div1 = 27).

Step3: Check 2

(27\div2=13.5), 2 is not a factor as the result is not an integer.

Step4: Check 3

(27\div3 = 9), so 3 is a factor.

Step5: Check 4

(27\div4 = 6.75), 4 is not a factor.

Step6: Check 5

(27\div5 = 5.4), 5 is not a factor.

Step7: Check 6

(27\div6 = 4.5), 6 is not a factor.

Step8: Check 7

(27\div7\approx3.86), 7 is not a factor.

Step9: Check 8

(27\div8 = 3.375), 8 is not a factor.

Step10: Check 9

(27\div9 = 3), so 9 is a factor.

Step11: Check 10 - 26

We don't need to check numbers from 10 - 26 as we have already found that (27 = 1\times27=3\times9).

Step12: Consider 27 itself

27 is a factor of 27 since (27\div27 = 1).

Answer:

1, 3, 9, 27