Q: Is 687,142 a Prime Number?

 A: No, 687,142 is not a prime number.

Why is 687,142 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 687142 can be evenly divided by 1 2 79 158 4,349 8,698 343,571 and 687,142, with no remainder.

Since 687,142 cannot be divided by just 1 and 687,142, it is not a prime number.


More Examples

Number 687,140687,141687,143687,144
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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