Q: Is 21,052 a Prime Number?
A: No, 21,052 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 21052 can be evenly divided by 1 2 4 19 38 76 277 554 1,108 5,263 10,526 and 21,052, with no remainder.
Since 21,052 cannot be divided by just 1 and 21,052, it is not a prime number.