Q: Is 404,001 a Prime Number?

A: No, 404,001 is not a prime number.

Why is 404,001 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 404001 can be evenly divided by 1 3 9 13 27 39 117 351 1,151 3,453 10,359 14,963 31,077 44,889 134,667 and 404,001, with no remainder.

Since 404,001 cannot be divided by just 1 and 404,001, it is not a prime number.

Number	403,999	404,000	404,002	404,003
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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