Q: Is 684,680 a Prime Number?
A: No, 684,680 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 684680 can be evenly divided by 1 2 4 5 8 10 20 40 17,117 34,234 68,468 85,585 136,936 171,170 342,340 and 684,680, with no remainder.
Since 684,680 cannot be divided by just 1 and 684,680, it is not a prime number.