Is 16 a factor of 21?

Here we will show you two different methods you can use to determine if 16 is a factor of 21.

The first method entails simply listing all factors of 21 and then seeing if 16 is one of them. The factors of 21 are 1, 3, 7, and 21. Looking at the list, you see that 16 is not on the list, and the answer to "Is 16 a factor of 21?" is therefore no.

For the second and perhaps easier method, we divide 21 by 16 to see if the quotient is a whole number or fractional number. If the quotient is a whole number, then 16 is a factor of 21. If the quotient is a fractional number, then 16 is not a factor of 21.

21 divided by 16 is 1.3125 which is a fractional number. Thus, once again, the answer to "Is 16 a factor of 21?" is no.

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