Q: Is 311,389 a Prime Number?
A: No, 311,389 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 311389 can be evenly divided by 1 13 17 221 1,409 18,317 23,953 and 311,389, with no remainder.
Since 311,389 cannot be divided by just 1 and 311,389, it is not a prime number.