Q: Is 2,511,521 a Composite Number?
A: No, 2,511,521 is not a composite number; it is a prime number.
The number 2,511,521 can be evenly divided by 1 and 2,511,521, with no remainder.
Since 2,511,521 can be divided by just 1 and 2,511,521, it is not a composite number.