Is 43 a factor of 643?

Here we will show you two different methods you can use to determine if 43 is a factor of 643.

The first method entails simply listing all factors of 643 and then seeing if 43 is one of them. The factors of 643 are 1 and 643. Looking at the list, you see that 43 is not on the list, and the answer to "Is 43 a factor of 643?" is therefore no.

For the second and perhaps easier method, we divide 643 by 43 to see if the quotient is a whole number or fractional number. If the quotient is a whole number, then 43 is a factor of 643. If the quotient is a fractional number, then 43 is not a factor of 643.

643 divided by 43 is 14.95348837 which is a fractional number. Thus, once again, the answer to "Is 43 a factor of 643?" is no.

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Is 43 a factor of 644?
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