Q: Is 2,104,821 a Prime Number?
A: No, 2,104,821 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 2104821 can be evenly divided by 1 3 9 17 51 153 13,757 41,271 123,813 233,869 701,607 and 2,104,821, with no remainder.
Since 2,104,821 cannot be divided by just 1 and 2,104,821, it is not a prime number.