Q: Is 687,707 a Prime Number?
A: Yes, 687,707 is a prime number.
A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 687707 can be evenly divided by 1 and 687,707, with no remainder.
Since 687,707 can be divided by just 1 and 687,707, it is a prime number.