Q: Is 216,508 a Prime Number?
A: No, 216,508 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 216508 can be evenly divided by 1 2 4 113 226 452 479 958 1,916 54,127 108,254 and 216,508, with no remainder.
Since 216,508 cannot be divided by just 1 and 216,508, it is not a prime number.