Q: Is 4,009,991 a Composite Number?
A: No, 4,009,991 is not a composite number; it is a prime number.
The number 4,009,991 can be evenly divided by 1 and 4,009,991, with no remainder.
Since 4,009,991 can be divided by just 1 and 4,009,991, it is not a composite number.