Q: Is 4,040,389 a Prime Number?
A: Yes, 4,040,389 is a prime number.
A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 4040389 can be evenly divided by 1 and 4,040,389, with no remainder.
Since 4,040,389 can be divided by just 1 and 4,040,389, it is a prime number.