Q: Is 409,504 a Prime Number?
A: No, 409,504 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 409504 can be evenly divided by 1 2 4 8 16 32 67 134 191 268 382 536 764 1,072 1,528 2,144 3,056 6,112 12,797 25,594 51,188 102,376 204,752 and 409,504, with no remainder.
Since 409,504 cannot be divided by just 1 and 409,504, it is not a prime number.