Q: Is 21,376 a Composite Number?
A: Yes, 21,376 is a composite number.
The number 21,376 can be evenly divided by 1 2 4 8 16 32 64 128 167 334 668 1,336 2,672 5,344 10,688 and 21,376, with no remainder.
Since 21,376 cannot be divided by just 1 and 21,376, it is a composite number.