Q: Is 2,121,684 a Prime Number?
A: No, 2,121,684 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 2121684 can be evenly divided by 1 2 3 4 6 12 176,807 353,614 530,421 707,228 1,060,842 and 2,121,684, with no remainder.
Since 2,121,684 cannot be divided by just 1 and 2,121,684, it is not a prime number.