Q: Is 21,003,004 a Prime Number?

 A: No, 21,003,004 is not a prime number.

Why is 21,003,004 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 21003004 can be evenly divided by 1 2 4 11 22 44 477,341 954,682 1,909,364 5,250,751 10,501,502 and 21,003,004, with no remainder.

Since 21,003,004 cannot be divided by just 1 and 21,003,004, it is not a prime number.


More Examples

Number 21,003,00221,003,00321,003,00521,003,006
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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