Q: Is 431,216 a Prime Number?
A: No, 431,216 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 431216 can be evenly divided by 1 2 4 8 16 26,951 53,902 107,804 215,608 and 431,216, with no remainder.
Since 431,216 cannot be divided by just 1 and 431,216, it is not a prime number.