Q: Is 21,800 a Composite Number?

 A: Yes, 21,800 is a composite number.

Why is 21,800 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 21,800 can be evenly divided by 1 2 4 5 8 10 20 25 40 50 100 109 200 218 436 545 872 1,090 2,180 2,725 4,360 5,450 10,900 and 21,800, with no remainder.

Since 21,800 cannot be divided by just 1 and 21,800, it is a composite number.


More Examples

Number 21,79821,79921,80121,802
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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