Q: Is 211,808 a Prime Number?
A: No, 211,808 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 211808 can be evenly divided by 1 2 4 8 16 32 6,619 13,238 26,476 52,952 105,904 and 211,808, with no remainder.
Since 211,808 cannot be divided by just 1 and 211,808, it is not a prime number.