Q: Is 21,836 a Prime Number?
A: No, 21,836 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 21836 can be evenly divided by 1 2 4 53 103 106 206 212 412 5,459 10,918 and 21,836, with no remainder.
Since 21,836 cannot be divided by just 1 and 21,836, it is not a prime number.