Q: Is 400,828 a Prime Number?
A: No, 400,828 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 400828 can be evenly divided by 1 2 4 100,207 200,414 and 400,828, with no remainder.
Since 400,828 cannot be divided by just 1 and 400,828, it is not a prime number.