Q: Is 821,253 a Prime Number?
A: No, 821,253 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 821253 can be evenly divided by 1 3 17 51 16,103 48,309 273,751 and 821,253, with no remainder.
Since 821,253 cannot be divided by just 1 and 821,253, it is not a prime number.