Q: Is 1,539,721 a Composite Number?
A: No, 1,539,721 is not a composite number; it is a prime number.
The number 1,539,721 can be evenly divided by 1 and 1,539,721, with no remainder.
Since 1,539,721 can be divided by just 1 and 1,539,721, it is not a composite number.