Q: Is 840,678 a Prime Number?
A: No, 840,678 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 840678 can be evenly divided by 1 2 3 6 167 334 501 839 1,002 1,678 2,517 5,034 140,113 280,226 420,339 and 840,678, with no remainder.
Since 840,678 cannot be divided by just 1 and 840,678, it is not a prime number.