Q: Is 20,215 a Prime Number?
A: No, 20,215 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 20215 can be evenly divided by 1 5 13 65 311 1,555 4,043 and 20,215, with no remainder.
Since 20,215 cannot be divided by just 1 and 20,215, it is not a prime number.