Q: Is 201,201,021 a Prime Number?

 A: No, 201,201,021 is not a prime number.

Why is 201,201,021 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 201201021 can be evenly divided by 1 3 7 9 21 63 3,193,667 9,581,001 22,355,669 28,743,003 67,067,007 and 201,201,021, with no remainder.

Since 201,201,021 cannot be divided by just 1 and 201,201,021, it is not a prime number.


More Examples

Number 201,201,019201,201,020201,201,022201,201,023
Prime? nononoyes
  • All positive natural numbers are either a prime number or a composite number (except the number 1, which is neither).

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