Q: Is 42,004,520 a Prime Number?

 A: No, 42,004,520 is not a prime number.

Why is 42,004,520 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 42004520 can be evenly divided by 1 2 4 5 8 10 20 40 193 386 772 965 1,544 1,930 3,860 5,441 7,720 10,882 21,764 27,205 43,528 54,410 108,820 217,640 1,050,113 2,100,226 4,200,452 5,250,565 8,400,904 10,501,130 21,002,260 and 42,004,520, with no remainder.

Since 42,004,520 cannot be divided by just 1 and 42,004,520, 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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