Q: Is 21,510 a Composite Number?

 A: Yes, 21,510 is a composite number.

Why is 21,510 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 21,510 can be evenly divided by 1 2 3 5 6 9 10 15 18 30 45 90 239 478 717 1,195 1,434 2,151 2,390 3,585 4,302 7,170 10,755 and 21,510, with no remainder.

Since 21,510 cannot be divided by just 1 and 21,510, it is a composite number.


More Examples

Number 21,50821,50921,51121,512
Composite? yesyesyesyes
  • All positive natural numbers are either a prime number or a composite number (except the number 1, which is neither).

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