Q: Is 438,431 a Prime Number?
A: No, 438,431 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 438431 can be evenly divided by 1 7 62,633 and 438,431, with no remainder.
Since 438,431 cannot be divided by just 1 and 438,431, it is not a prime number.