Q: Is 21,121,013 a Prime Number?

 A: No, 21,121,013 is not a prime number.

Why is 21,121,013 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 21121013 can be evenly divided by 1 31 67 2,077 10,169 315,239 681,323 and 21,121,013, with no remainder.

Since 21,121,013 cannot be divided by just 1 and 21,121,013, it is not a prime number.


More Examples

Number 21,121,01121,121,01221,121,01421,121,015
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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