Q: Is 400,002 a Prime Number?

 A: No, 400,002 is not a prime number.

Why is 400,002 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 400002 can be evenly divided by 1 2 3 6 163 326 409 489 818 978 1,227 2,454 66,667 133,334 200,001 and 400,002, with no remainder.

Since 400,002 cannot be divided by just 1 and 400,002, it is not a prime number.


More Examples

Number 400,000400,001400,003400,004
Prime? nononono
  • All positive natural numbers are either a prime number or a composite number (except the number 1, which is neither).

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