Q: Is 687,989 a Prime Number?
A: No, 687,989 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 687989 can be evenly divided by 1 257 2,677 and 687,989, with no remainder.
Since 687,989 cannot be divided by just 1 and 687,989, it is not a prime number.