Q: Is 2,378,921 a Composite Number?
A: No, 2,378,921 is not a composite number; it is a prime number.
The number 2,378,921 can be evenly divided by 1 and 2,378,921, with no remainder.
Since 2,378,921 can be divided by just 1 and 2,378,921, it is not a composite number.