Q: Is 1,643,779 a Composite Number?
A: No, 1,643,779 is not a composite number; it is a prime number.
The number 1,643,779 can be evenly divided by 1 and 1,643,779, with no remainder.
Since 1,643,779 can be divided by just 1 and 1,643,779, it is not a composite number.