Q: Is 820,436 a Prime Number?
A: No, 820,436 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 820436 can be evenly divided by 1 2 4 443 463 886 926 1,772 1,852 205,109 410,218 and 820,436, with no remainder.
Since 820,436 cannot be divided by just 1 and 820,436, it is not a prime number.