Q: Is 1,665 a Composite Number?
A: Yes, 1,665 is a composite number.
The number 1,665 can be evenly divided by 1 3 5 9 15 37 45 111 185 333 555 and 1,665, with no remainder.
Since 1,665 cannot be divided by just 1 and 1,665, it is a composite number.