Q: Is 1,721,243 a Composite Number?
A: No, 1,721,243 is not a composite number; it is a prime number.
The number 1,721,243 can be evenly divided by 1 and 1,721,243, with no remainder.
Since 1,721,243 can be divided by just 1 and 1,721,243, it is not a composite number.