Q: Is 505,421 a Prime Number?

 A: No, 505,421 is not a prime number.

Why is 505,421 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 505421 can be evenly divided by 1 7 103 701 721 4,907 72,203 and 505,421, with no remainder.

Since 505,421 cannot be divided by just 1 and 505,421, it is not a prime number.


More Examples

Number 505,419505,420505,422505,423
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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