Q: Is 21,167 a Prime Number?
A: No, 21,167 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 21167 can be evenly divided by 1 61 347 and 21,167, with no remainder.
Since 21,167 cannot be divided by just 1 and 21,167, it is not a prime number.