Q: Is 900,003 a Prime Number?

A: No, 900,003 is not a prime number.

Why is 900,003 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 900003 can be evenly divided by 1 3 13 39 47 141 491 611 1,473 1,833 6,383 19,149 23,077 69,231 300,001 and 900,003, with no remainder.

Since 900,003 cannot be divided by just 1 and 900,003, it is not a prime number.

Number	900,001	900,002	900,004	900,005
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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