Q: Is 21,470,042 a Prime Number?

 A: No, 21,470,042 is not a prime number.

Why is 21,470,042 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 21470042 can be evenly divided by 1 2 11 22 31 62 341 682 31,481 62,962 346,291 692,582 975,911 1,951,822 10,735,021 and 21,470,042, with no remainder.

Since 21,470,042 cannot be divided by just 1 and 21,470,042, 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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