Q: Is 691,003 a Prime Number?

A: No, 691,003 is not a prime number.

Why is 691,003 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 691003 can be evenly divided by 1 251 2,753 and 691,003, with no remainder.

Since 691,003 cannot be divided by just 1 and 691,003, it is not a prime number.

Number	691,001	691,002	691,004	691,005
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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