Q: Is 21,172 a Composite Number?
A: Yes, 21,172 is a composite number.
The number 21,172 can be evenly divided by 1 2 4 67 79 134 158 268 316 5,293 10,586 and 21,172, with no remainder.
Since 21,172 cannot be divided by just 1 and 21,172, it is a composite number.