Q: Is 21,380 a Composite Number?

 A: Yes, 21,380 is a composite number.

Why is 21,380 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 21,380 can be evenly divided by 1 2 4 5 10 20 1,069 2,138 4,276 5,345 10,690 and 21,380, with no remainder.

Since 21,380 cannot be divided by just 1 and 21,380, it is a composite number.


More Examples

Number 21,37821,37921,38121,382
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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