Q: Is 2,543,399 a Composite Number?
A: No, 2,543,399 is not a composite number; it is a prime number.
The number 2,543,399 can be evenly divided by 1 and 2,543,399, with no remainder.
Since 2,543,399 can be divided by just 1 and 2,543,399, it is not a composite number.