Q: Is 409,478 a Prime Number?
A: No, 409,478 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 409478 can be evenly divided by 1 2 53 106 3,863 7,726 204,739 and 409,478, with no remainder.
Since 409,478 cannot be divided by just 1 and 409,478, it is not a prime number.