Q: Is 2,521,397 a Composite Number?
A: No, 2,521,397 is not a composite number; it is a prime number.
The number 2,521,397 can be evenly divided by 1 and 2,521,397, with no remainder.
Since 2,521,397 can be divided by just 1 and 2,521,397, it is not a composite number.