Is 3 a factor of 639?

Here we will show you two different methods you can use to determine if 3 is a factor of 639.

The first method entails simply listing all factors of 639 and then seeing if 3 is one of them. The factors of 639 are 1, 3, 9, 71, 213, and 639. Looking at the list, you see that 3 is on the list, and the answer to "Is 3 a factor of 639?" is therefore yes.

For the second and perhaps easier method, we divide 639 by 3 to see if the quotient is a whole number or fractional number. If the quotient is a whole number, then 3 is a factor of 639. If the quotient is a fractional number, then 3 is not a factor of 639.

639 divided by 3 is 213 which is a whole number. Thus, once again, the answer to "Is 3 a factor of 639?" is yes.

Factor Checker
Need to do another factor check? No problem! You are welcome to submit a similar problem below.

Is 3 a factor of 640?
Now you know that 3 is a factor of 639. Here is the next problem on our list that our Factor Checker explained and solved.