Q: Is 10,200,020 a Prime Number?

 A: No, 10,200,020 is not a prime number.

Why is 10,200,020 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 10200020 can be evenly divided by 1 2 4 5 10 20 223 446 892 1,115 2,230 2,287 4,460 4,574 9,148 11,435 22,870 45,740 510,001 1,020,002 2,040,004 2,550,005 5,100,010 and 10,200,020, with no remainder.

Since 10,200,020 cannot be divided by just 1 and 10,200,020, 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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