Q: Is 8,511,991 a Composite Number?
A: No, 8,511,991 is not a composite number; it is a prime number.
The number 8,511,991 can be evenly divided by 1 and 8,511,991, with no remainder.
Since 8,511,991 can be divided by just 1 and 8,511,991, it is not a composite number.