Q: Is 21,116 a Prime Number?
A: No, 21,116 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 21116 can be evenly divided by 1 2 4 5,279 10,558 and 21,116, with no remainder.
Since 21,116 cannot be divided by just 1 and 21,116, it is not a prime number.