Q: Is 163,431 a Prime Number?
A: No, 163,431 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 163431 can be evenly divided by 1 3 9 27 6,053 18,159 54,477 and 163,431, with no remainder.
Since 163,431 cannot be divided by just 1 and 163,431, it is not a prime number.