Q: Is 421,643 a Prime Number?

 A: Yes, 421,643 is a prime number.

Why is 421,643 a prime number?

A prime number is a natural number, greater than one, that can only be divided by 1 and itself.

The number 421643 can be evenly divided by 1 and 421,643, with no remainder.

Since 421,643 can be divided by just 1 and 421,643, it is a prime number.


More Examples

Number 421,641421,642421,644421,645
Prime? nononono
  • All positive natural numbers are either a prime number or a composite number (except the number 1, which is neither).

Explore more about the number 421,643:


Ask a Question