Q: Is 680,684 a Prime Number?
A: No, 680,684 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 680684 can be evenly divided by 1 2 4 379 449 758 898 1,516 1,796 170,171 340,342 and 680,684, with no remainder.
Since 680,684 cannot be divided by just 1 and 680,684, it is not a prime number.