Question

write all the factors of 18. use commas to separate them.

Explanation:

Step1: Recall factor definition

A factor of a number is an integer that divides the number without leaving a remainder.

Step2: Find factors of 18

Start with 1: \(18 \div 1 = 18\), so 1 and 18 are factors.
Next, 2: \(18 \div 2 = 9\), so 2 and 9 are factors.
Then, 3: \(18 \div 3 = 6\), so 3 and 6 are factors.
Check 4: \(18 \div 4 = 4.5\) (not integer), so 4 is not a factor.
Check 5: \(18 \div 5 = 3.6\) (not integer), so 5 is not a factor.
Check 6: Already found from 3.
So the factors are 1, 2, 3, 6, 9, 18.

Answer:

1, 2, 3, 6, 9, 18