Q: Is 6,641,561 a Composite Number?
A: No, 6,641,561 is not a composite number; it is a prime number.
The number 6,641,561 can be evenly divided by 1 and 6,641,561, with no remainder.
Since 6,641,561 can be divided by just 1 and 6,641,561, it is not a composite number.