Q: Is 216,808 a Prime Number?
A: No, 216,808 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 216808 can be evenly divided by 1 2 4 8 41 82 164 328 661 1,322 2,644 5,288 27,101 54,202 108,404 and 216,808, with no remainder.
Since 216,808 cannot be divided by just 1 and 216,808, it is not a prime number.