Question

write all the factors of 20. 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 20

Start with 1: \(20\div1 = 20\), so 1 and 20 are factors.
Next, 2: \(20\div2 = 10\), so 2 and 10 are factors.
Then, 3: \(20\div3\) has a remainder, so 3 is not a factor.
Next, 4: \(20\div4 = 5\), so 4 and 5 are factors.
After 5, we start repeating (since \(20\div5 = 4\) which we already have), so we stop.

Answer:

1, 2, 4, 5, 10, 20