Q: Is 409,609 a Prime Number?
A: Yes, 409,609 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 409609 can be evenly divided by 1 and 409,609, with no remainder.
Since 409,609 can be divided by just 1 and 409,609, it is a prime number.