Q: Is 428,679 a Prime Number?

A: No, 428,679 is not a prime number.

Why is 428,679 not a prime number?

A prime number is a natural number, greater than one, that can only be divided by 1 and itself.

The number 428679 can be evenly divided by 1 3 9 27 15,877 47,631 142,893 and 428,679, with no remainder.

Since 428,679 cannot be divided by just 1 and 428,679, it is not a prime number.

Number	428,677	428,678	428,680	428,681
Prime?	yes	no	no	no

All positive natural numbers are either a prime number or a composite number (except the number 1, which is neither).

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