Q: Is 1,427,780 a Composite Number?
A: Yes, 1,427,780 is a composite number.
The number 1,427,780 can be evenly divided by 1 2 4 5 10 20 71,389 142,778 285,556 356,945 713,890 and 1,427,780, with no remainder.
Since 1,427,780 cannot be divided by just 1 and 1,427,780, it is a composite number.