Q: Is 321,607 a Prime Number?

A: No, 321,607 is not a prime number.

Why is 321,607 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 321607 can be evenly divided by 1 11 13 143 169 173 1,859 1,903 2,249 24,739 29,237 and 321,607, with no remainder.

Since 321,607 cannot be divided by just 1 and 321,607, it is not a prime number.

Number	321,605	321,606	321,608	321,609
Prime?	no	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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