Q: Is 2,165,397 a Prime Number?
A: No, 2,165,397 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 2165397 can be evenly divided by 1 3 13 39 169 507 4,271 12,813 55,523 166,569 721,799 and 2,165,397, with no remainder.
Since 2,165,397 cannot be divided by just 1 and 2,165,397, it is not a prime number.