Q: Is 42,005,538 a Prime Number?

 A: No, 42,005,538 is not a prime number.

Why is 42,005,538 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 42005538 can be evenly divided by 1 2 3 6 9 17 18 34 51 102 153 306 137,273 274,546 411,819 823,638 1,235,457 2,333,641 2,470,914 4,667,282 7,000,923 14,001,846 21,002,769 and 42,005,538, with no remainder.

Since 42,005,538 cannot be divided by just 1 and 42,005,538, 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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