Q: Is 401,439 a Prime Number?
A: No, 401,439 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 401439 can be evenly divided by 1 3 133,813 and 401,439, with no remainder.
Since 401,439 cannot be divided by just 1 and 401,439, it is not a prime number.