Is 9 a factor of 405?

Here we will show you two different methods you can use to determine if 9 is a factor of 405.

The first method entails simply listing all factors of 405 and then seeing if 9 is one of them. The factors of 405 are 1, 3, 5, 9, 15, 27, 45, 81, 135, and 405. Looking at the list, you see that 9 is on the list, and the answer to "Is 9 a factor of 405?" is therefore yes.

For the second and perhaps easier method, we divide 405 by 9 to see if the quotient is a whole number or fractional number. If the quotient is a whole number, then 9 is a factor of 405. If the quotient is a fractional number, then 9 is not a factor of 405.

405 divided by 9 is 45 which is a whole number. Thus, once again, the answer to "Is 9 a factor of 405?" is yes.

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

Is 9 a factor of 406?
Now you know that 9 is a factor of 405. Here is the next problem on our list that our Factor Checker explained and solved.