Q: Is 20,508 a Prime Number?
A: No, 20,508 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 20508 can be evenly divided by 1 2 3 4 6 12 1,709 3,418 5,127 6,836 10,254 and 20,508, with no remainder.
Since 20,508 cannot be divided by just 1 and 20,508, it is not a prime number.