Q: Is 821,279 a Prime Number?
A: No, 821,279 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 821279 can be evenly divided by 1 293 2,803 and 821,279, with no remainder.
Since 821,279 cannot be divided by just 1 and 821,279, it is not a prime number.