Q: Is 688,955 a Prime Number?
A: No, 688,955 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 688955 can be evenly divided by 1 5 137,791 and 688,955, with no remainder.
Since 688,955 cannot be divided by just 1 and 688,955, it is not a prime number.