Q: Is 1,800,397 a Composite Number?
A: No, 1,800,397 is not a composite number; it is a prime number.
The number 1,800,397 can be evenly divided by 1 and 1,800,397, with no remainder.
Since 1,800,397 can be divided by just 1 and 1,800,397, it is not a composite number.