Q: Is 21,512 a Composite Number?
A: Yes, 21,512 is a composite number.
The number 21,512 can be evenly divided by 1 2 4 8 2,689 5,378 10,756 and 21,512, with no remainder.
Since 21,512 cannot be divided by just 1 and 21,512, it is a composite number.