Q: Is 688 a Prime Number?

 A: No, 688 is not a prime number.

Why is 688 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 688 can be evenly divided by 1 2 4 8 16 43 86 172 344 and 688, with no remainder.

Since 688 cannot be divided by just 1 and 688, it is not a prime number.


More Examples

Number 686687689690
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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