Q: Is 21,013,013 a Prime Number?

 A: No, 21,013,013 is not a prime number.

Why is 21,013,013 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 21013013 can be evenly divided by 1 7 49 97 679 4,421 4,753 30,947 216,629 428,837 3,001,859 and 21,013,013, with no remainder.

Since 21,013,013 cannot be divided by just 1 and 21,013,013, it is not a prime number.


More Examples

  • All positive natural numbers are either a prime number or a composite number (except the number 1, which is neither).

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