Q: Is 2,555,309 a Composite Number?
A: No, 2,555,309 is not a composite number; it is a prime number.
The number 2,555,309 can be evenly divided by 1 and 2,555,309, with no remainder.
Since 2,555,309 can be divided by just 1 and 2,555,309, it is not a composite number.