Q: Is 21,564 a Composite Number?
A: Yes, 21,564 is a composite number.
The number 21,564 can be evenly divided by 1 2 3 4 6 9 12 18 36 599 1,198 1,797 2,396 3,594 5,391 7,188 10,782 and 21,564, with no remainder.
Since 21,564 cannot be divided by just 1 and 21,564, it is a composite number.