Q: Is 42,402,405 a Prime Number?

 A: No, 42,402,405 is not a prime number.

Why is 42,402,405 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 42402405 can be evenly divided by 1 3 5 15 41 123 205 615 68,947 206,841 344,735 1,034,205 2,826,827 8,480,481 14,134,135 and 42,402,405, with no remainder.

Since 42,402,405 cannot be divided by just 1 and 42,402,405, it is not a prime number.


More Examples

Number 42,402,40342,402,40442,402,40642,402,407
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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