Q: Is 21,920 a Composite Number?
A: Yes, 21,920 is a composite number.
The number 21,920 can be evenly divided by 1 2 4 5 8 10 16 20 32 40 80 137 160 274 548 685 1,096 1,370 2,192 2,740 4,384 5,480 10,960 and 21,920, with no remainder.
Since 21,920 cannot be divided by just 1 and 21,920, it is a composite number.