Q: Is 685,004 a Prime Number?

A: No, 685,004 is not a prime number.

Why is 685,004 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 685004 can be evenly divided by 1 2 4 171,251 342,502 and 685,004, with no remainder.

Since 685,004 cannot be divided by just 1 and 685,004, it is not a prime number.

Number	685,002	685,003	685,005	685,006
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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