Q: Is 840,342 a Prime Number?
A: No, 840,342 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 840342 can be evenly divided by 1 2 3 6 140,057 280,114 420,171 and 840,342, with no remainder.
Since 840,342 cannot be divided by just 1 and 840,342, it is not a prime number.