Q: Is 812,421 a Prime Number?
A: No, 812,421 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 812421 can be evenly divided by 1 3 9 19 57 171 4,751 14,253 42,759 90,269 270,807 and 812,421, with no remainder.
Since 812,421 cannot be divided by just 1 and 812,421, it is not a prime number.