Q: Is 680,540 a Prime Number?
A: No, 680,540 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 680540 can be evenly divided by 1 2 4 5 7 10 14 20 28 35 70 140 4,861 9,722 19,444 24,305 34,027 48,610 68,054 97,220 136,108 170,135 340,270 and 680,540, with no remainder.
Since 680,540 cannot be divided by just 1 and 680,540, it is not a prime number.