Q: Is 20,722 a Prime Number?
A: No, 20,722 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 20722 can be evenly divided by 1 2 13 26 797 1,594 10,361 and 20,722, with no remainder.
Since 20,722 cannot be divided by just 1 and 20,722, it is not a prime number.