Q: Is 1,815 a Composite Number?
A: Yes, 1,815 is a composite number.
The number 1,815 can be evenly divided by 1 3 5 11 15 33 55 121 165 363 605 and 1,815, with no remainder.
Since 1,815 cannot be divided by just 1 and 1,815, it is a composite number.