Q: Is 400,238 a Prime Number?
A: No, 400,238 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 400238 can be evenly divided by 1 2 293 586 683 1,366 200,119 and 400,238, with no remainder.
Since 400,238 cannot be divided by just 1 and 400,238, it is not a prime number.