Q: Is 81,945 a Composite Number?
A: Yes, 81,945 is a composite number.
The number 81,945 can be evenly divided by 1 3 5 9 15 27 45 135 607 1,821 3,035 5,463 9,105 16,389 27,315 and 81,945, with no remainder.
Since 81,945 cannot be divided by just 1 and 81,945, it is a composite number.