Q: Is 420,003 a Prime Number?

 A: No, 420,003 is not a prime number.

Why is 420,003 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 420003 can be evenly divided by 1 3 9 23 69 207 2,029 6,087 18,261 46,667 140,001 and 420,003, with no remainder.

Since 420,003 cannot be divided by just 1 and 420,003, it is not a prime number.


More Examples

Number 420,001420,002420,004420,005
Prime? yesnonono
  • All positive natural numbers are either a prime number or a composite number (except the number 1, which is neither).

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