Q: Is 340,456 a Prime Number?
A: No, 340,456 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 340456 can be evenly divided by 1 2 4 8 42,557 85,114 170,228 and 340,456, with no remainder.
Since 340,456 cannot be divided by just 1 and 340,456, it is not a prime number.