Q: Is 3,940,509 a Prime Number?
A: No, 3,940,509 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 3940509 can be evenly divided by 1 3 787 1,669 2,361 5,007 1,313,503 and 3,940,509, with no remainder.
Since 3,940,509 cannot be divided by just 1 and 3,940,509, it is not a prime number.