Q: Is 21,231,004 a Prime Number?

 A: No, 21,231,004 is not a prime number.

Why is 21,231,004 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 21231004 can be evenly divided by 1 2 4 541 1,082 2,164 9,811 19,622 39,244 5,307,751 10,615,502 and 21,231,004, with no remainder.

Since 21,231,004 cannot be divided by just 1 and 21,231,004, 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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