Q: Is 421,790 a Prime Number?

 A: No, 421,790 is not a prime number.

Why is 421,790 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 421790 can be evenly divided by 1 2 5 10 42,179 84,358 210,895 and 421,790, with no remainder.

Since 421,790 cannot be divided by just 1 and 421,790, it is not a prime number.


More Examples

Number 421,788421,789421,791421,792
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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