Q: Is 13,815 a Composite Number?
A: Yes, 13,815 is a composite number.
The number 13,815 can be evenly divided by 1 3 5 9 15 45 307 921 1,535 2,763 4,605 and 13,815, with no remainder.
Since 13,815 cannot be divided by just 1 and 13,815, it is a composite number.