Q: Is 21,728 a Composite Number?

 A: Yes, 21,728 is a composite number.

Why is 21,728 a composite number?

A composite number is a number that can be divided evenly by more numbers than 1 and itself. It is the opposite of a prime number.

The number 21,728 can be evenly divided by 1 2 4 7 8 14 16 28 32 56 97 112 194 224 388 679 776 1,358 1,552 2,716 3,104 5,432 10,864 and 21,728, with no remainder.

Since 21,728 cannot be divided by just 1 and 21,728, it is a composite number.


More Examples

Number 21,72621,72721,72921,730
Composite? yesnoyesyes
  • All positive natural numbers are either a prime number or a composite number (except the number 1, which is neither).

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