Q: Is 6,660,221 a Composite Number?
A: No, 6,660,221 is not a composite number; it is a prime number.
The number 6,660,221 can be evenly divided by 1 and 6,660,221, with no remainder.
Since 6,660,221 can be divided by just 1 and 6,660,221, it is not a composite number.