Q: Is 687,001 a Prime Number?
A: No, 687,001 is 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 687001 can be evenly divided by 1 7 98,143 and 687,001, with no remainder.
Since 687,001 cannot be divided by just 1 and 687,001, it is not a prime number.