Q: Is 400,528 a Prime Number?
A: No, 400,528 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 400528 can be evenly divided by 1 2 4 8 16 25,033 50,066 100,132 200,264 and 400,528, with no remainder.
Since 400,528 cannot be divided by just 1 and 400,528, it is not a prime number.