Q: Is 21,875 a Composite Number?
A: Yes, 21,875 is a composite number.
The number 21,875 can be evenly divided by 1 5 7 25 35 125 175 625 875 3,125 4,375 and 21,875, with no remainder.
Since 21,875 cannot be divided by just 1 and 21,875, it is a composite number.