Q: Is 421,223 a Prime Number?

 A: No, 421,223 is not a prime number.

Why is 421,223 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 421223 can be evenly divided by 1 11 149 257 1,639 2,827 38,293 and 421,223, with no remainder.

Since 421,223 cannot be divided by just 1 and 421,223, it is not a prime number.


More Examples

Number 421,221421,222421,224421,225
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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