Q: Is 21,356 a Composite Number?
A: Yes, 21,356 is a composite number.
The number 21,356 can be evenly divided by 1 2 4 19 38 76 281 562 1,124 5,339 10,678 and 21,356, with no remainder.
Since 21,356 cannot be divided by just 1 and 21,356, it is a composite number.