Q: Is 688,918 a Prime Number?
A: No, 688,918 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 688918 can be evenly divided by 1 2 401 802 859 1,718 344,459 and 688,918, with no remainder.
Since 688,918 cannot be divided by just 1 and 688,918, it is not a prime number.