Q: Is 680,688 a Prime Number?
A: No, 680,688 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 680688 can be evenly divided by 1 2 3 4 6 8 9 12 16 18 24 29 36 48 58 72 87 116 144 163 174 232 261 326 348 464 489 522 652 696 978 1,044 1,304 1,392 1,467 1,956 2,088 2,608 2,934 3,912 4,176 4,727 5,868 7,824 9,454 11,736 14,181 18,908 23,472 28,362 37,816 42,543 56,724 75,632 85,086 113,448 170,172 226,896 340,344 and 680,688, with no remainder.
Since 680,688 cannot be divided by just 1 and 680,688, it is not a prime number.