Q: Is 345,857 a Prime Number?
A: No, 345,857 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 345857 can be evenly divided by 1 19 109 167 2,071 3,173 18,203 and 345,857, with no remainder.
Since 345,857 cannot be divided by just 1 and 345,857, it is not a prime number.