Q: Is 680,690 a Prime Number?
A: No, 680,690 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 680690 can be evenly divided by 1 2 5 10 43 86 215 430 1,583 3,166 7,915 15,830 68,069 136,138 340,345 and 680,690, with no remainder.
Since 680,690 cannot be divided by just 1 and 680,690, it is not a prime number.