Q: Is 840,646 a Prime Number?
A: No, 840,646 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 840646 can be evenly divided by 1 2 420,323 and 840,646, with no remainder.
Since 840,646 cannot be divided by just 1 and 840,646, it is not a prime number.