Q: Is 820,861 a Prime Number?
A: No, 820,861 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 820861 can be evenly divided by 1 41 20,021 and 820,861, with no remainder.
Since 820,861 cannot be divided by just 1 and 820,861, it is not a prime number.