Q: Is 100,003 a Prime Number?

A: Yes, 100,003 is a prime number.

Why is 100,003 a prime number?

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

The number 100003 can be evenly divided by 1 and 100,003, with no remainder.

Since 100,003 can be divided by just 1 and 100,003, it is a prime number.

Number	100,001	100,002	100,004	100,005
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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