Q: Is 420,243 a Prime Number?

 A: No, 420,243 is not a prime number.

Why is 420,243 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 420243 can be evenly divided by 1 3 127 381 1,103 3,309 140,081 and 420,243, with no remainder.

Since 420,243 cannot be divided by just 1 and 420,243, it is not a prime number.


More Examples

Number 420,241420,242420,244420,245
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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