Q: Is 2,780,621 a Composite Number?
A: No, 2,780,621 is not a composite number; it is a prime number.
The number 2,780,621 can be evenly divided by 1 and 2,780,621, with no remainder.
Since 2,780,621 can be divided by just 1 and 2,780,621, it is not a composite number.