Q: Is 21,395 a Prime Number?
A: No, 21,395 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 21395 can be evenly divided by 1 5 11 55 389 1,945 4,279 and 21,395, with no remainder.
Since 21,395 cannot be divided by just 1 and 21,395, it is not a prime number.