Q: Is 857,708 a Prime Number?
A: No, 857,708 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 857708 can be evenly divided by 1 2 4 31 62 124 6,917 13,834 27,668 214,427 428,854 and 857,708, with no remainder.
Since 857,708 cannot be divided by just 1 and 857,708, it is not a prime number.