Q: Is 21,315,220 a Composite Number?

 A: Yes, 21,315,220 is a composite number.

Why is 21,315,220 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 21,315,220 can be evenly divided by 1 2 4 5 10 20 211 422 844 1,055 2,110 4,220 5,051 10,102 20,204 25,255 50,510 101,020 1,065,761 2,131,522 4,263,044 5,328,805 10,657,610 and 21,315,220, with no remainder.

Since 21,315,220 cannot be divided by just 1 and 21,315,220, it is a composite number.


More Examples

Number 21,315,21821,315,21921,315,22121,315,222
Composite? yesyesnoyes
  • All positive natural numbers are either a prime number or a composite number (except the number 1, which is neither).

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