Q: Is 21,310 a Composite Number?
A: Yes, 21,310 is a composite number.
The number 21,310 can be evenly divided by 1 2 5 10 2,131 4,262 10,655 and 21,310, with no remainder.
Since 21,310 cannot be divided by just 1 and 21,310, it is a composite number.