Q: Is 1,221,021 a Prime Number?

 A: No, 1,221,021 is not a prime number.

Why is 1,221,021 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 1221021 can be evenly divided by 1 3 9 27 41 123 369 1,103 1,107 3,309 9,927 29,781 45,223 135,669 407,007 and 1,221,021, with no remainder.

Since 1,221,021 cannot be divided by just 1 and 1,221,021, it is not a prime number.


More Examples

Number 1,221,0191,221,0201,221,0221,221,023
Prime? yesnonono
  • All positive natural numbers are either a prime number or a composite number (except the number 1, which is neither).

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