Q: Is 431,438 a Prime Number?
A: No, 431,438 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 431438 can be evenly divided by 1 2 7 14 30,817 61,634 215,719 and 431,438, with no remainder.
Since 431,438 cannot be divided by just 1 and 431,438, it is not a prime number.