Q: Is 857,231 a Prime Number?
A: No, 857,231 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 857231 can be evenly divided by 1 179 4,789 and 857,231, with no remainder.
Since 857,231 cannot be divided by just 1 and 857,231, it is not a prime number.