Q: Is 2,139,721 a Composite Number?
A: Yes, 2,139,721 is a composite number.
The number 2,139,721 can be evenly divided by 1 631 3,391 and 2,139,721, with no remainder.
Since 2,139,721 cannot be divided by just 1 and 2,139,721, it is a composite number.