Q: Is 400,504 a Prime Number?
A: No, 400,504 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 400504 can be evenly divided by 1 2 4 8 13 26 52 104 3,851 7,702 15,404 30,808 50,063 100,126 200,252 and 400,504, with no remainder.
Since 400,504 cannot be divided by just 1 and 400,504, it is not a prime number.