Q: Is 800,409 a Prime Number?

A: No, 800,409 is not a prime number.

Why is 800,409 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 800409 can be evenly divided by 1 3 479 557 1,437 1,671 266,803 and 800,409, with no remainder.

Since 800,409 cannot be divided by just 1 and 800,409, it is not a prime number.

Number	800,407	800,408	800,410	800,411
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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