Q: Is 6,400,021 a Composite Number?
A: Yes, 6,400,021 is a composite number.
The number 6,400,021 can be evenly divided by 1 443 14,447 and 6,400,021, with no remainder.
Since 6,400,021 cannot be divided by just 1 and 6,400,021, it is a composite number.