Q: Is 211,664 a Prime Number?
A: No, 211,664 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 211664 can be evenly divided by 1 2 4 8 16 13,229 26,458 52,916 105,832 and 211,664, with no remainder.
Since 211,664 cannot be divided by just 1 and 211,664, it is not a prime number.