Q: Is 21,320 a Composite Number?
A: Yes, 21,320 is a composite number.
The number 21,320 can be evenly divided by 1 2 4 5 8 10 13 20 26 40 41 52 65 82 104 130 164 205 260 328 410 520 533 820 1,066 1,640 2,132 2,665 4,264 5,330 10,660 and 21,320, with no remainder.
Since 21,320 cannot be divided by just 1 and 21,320, it is a composite number.