Q: Is 221,002,001 a Prime Number?

 A: No, 221,002,001 is not a prime number.

Why is 221,002,001 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 221002001 can be evenly divided by 1 11 457 5,027 43,963 483,593 20,091,091 and 221,002,001, with no remainder.

Since 221,002,001 cannot be divided by just 1 and 221,002,001, it is not a prime number.


More Examples

Number 221,001,999221,002,000221,002,002221,002,003
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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