Q: Is 20,711 a Prime Number?
A: No, 20,711 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 20711 can be evenly divided by 1 139 149 and 20,711, with no remainder.
Since 20,711 cannot be divided by just 1 and 20,711, it is not a prime number.