Q: Is 687,005 a Prime Number?

 A: No, 687,005 is not a prime number.

Why is 687,005 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 687005 can be evenly divided by 1 5 11 55 12,491 62,455 137,401 and 687,005, with no remainder.

Since 687,005 cannot be divided by just 1 and 687,005, it is not a prime number.


More Examples

Number 687,003687,004687,006687,007
Prime? nononoyes
  • All positive natural numbers are either a prime number or a composite number (except the number 1, which is neither).

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