Q: Is 406,678 a Prime Number?
A: No, 406,678 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 406678 can be evenly divided by 1 2 203,339 and 406,678, with no remainder.
Since 406,678 cannot be divided by just 1 and 406,678, it is not a prime number.