Q: Is 21,507,320 a Composite Number?

 A: Yes, 21,507,320 is a composite number.

Why is 21,507,320 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 21,507,320 can be evenly divided by 1 2 4 5 8 10 20 40 71 142 284 355 568 710 1,420 2,840 7,573 15,146 30,292 37,865 60,584 75,730 151,460 302,920 537,683 1,075,366 2,150,732 2,688,415 4,301,464 5,376,830 10,753,660 and 21,507,320, with no remainder.

Since 21,507,320 cannot be divided by just 1 and 21,507,320, it is a composite number.


More Examples

Number 21,507,31821,507,31921,507,32121,507,322
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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