Q: Is 21,659 a Prime Number?
A: No, 21,659 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 21659 can be evenly divided by 1 11 121 179 1,969 and 21,659, with no remainder.
Since 21,659 cannot be divided by just 1 and 21,659, it is not a prime number.