Q: Is 79,821 a Prime Number?
A: No, 79,821 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 79821 can be evenly divided by 1 3 7 9 21 49 63 147 181 441 543 1,267 1,629 3,801 8,869 11,403 26,607 and 79,821, with no remainder.
Since 79,821 cannot be divided by just 1 and 79,821, it is not a prime number.