Q: Is 31,003 a Prime Number?

A: No, 31,003 is not a prime number.

Why is 31,003 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 31003 can be evenly divided by 1 7 43 103 301 721 4,429 and 31,003, with no remainder.

Since 31,003 cannot be divided by just 1 and 31,003, it is not a prime number.

Number	31,001	31,002	31,004	31,005
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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