Q: Is 2,157,863 a Composite Number?
A: No, 2,157,863 is not a composite number; it is a prime number.
The number 2,157,863 can be evenly divided by 1 and 2,157,863, with no remainder.
Since 2,157,863 can be divided by just 1 and 2,157,863, it is not a composite number.