Is 7 a factor of 405?

Here we will show you two different methods you can use to determine if 7 is a factor of 405.

The first method entails simply listing all factors of 405 and then seeing if 7 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 7 is not on the list, and the answer to "Is 7 a factor of 405?" is therefore no.

For the second and perhaps easier method, we divide 405 by 7 to see if the quotient is a whole number or fractional number. If the quotient is a whole number, then 7 is a factor of 405. If the quotient is a fractional number, then 7 is not a factor of 405.

405 divided by 7 is 57.85714286 which is a fractional number. Thus, once again, the answer to "Is 7 a factor of 405?" is no.

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Is 7 a factor of 406?
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