Q: Is 21,276 a Composite Number?
A: Yes, 21,276 is a composite number.
The number 21,276 can be evenly divided by 1 2 3 4 6 9 12 18 27 36 54 108 197 394 591 788 1,182 1,773 2,364 3,546 5,319 7,092 10,638 and 21,276, with no remainder.
Since 21,276 cannot be divided by just 1 and 21,276, it is a composite number.