Q: Is 840,421 a Prime Number?

 A: No, 840,421 is not a prime number.

Why is 840,421 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 840421 can be evenly divided by 1 53 101 157 5,353 8,321 15,857 and 840,421, with no remainder.

Since 840,421 cannot be divided by just 1 and 840,421, it is not a prime number.


More Examples

Number 840,419840,420840,422840,423
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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