Q: Is 21,000,135 a Composite Number?

 A: Yes, 21,000,135 is a composite number.

Why is 21,000,135 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 21,000,135 can be evenly divided by 1 3 5 13 15 39 65 195 107,693 323,079 538,465 1,400,009 1,615,395 4,200,027 7,000,045 and 21,000,135, with no remainder.

Since 21,000,135 cannot be divided by just 1 and 21,000,135, it is a composite number.


More Examples

Number 21,000,13321,000,13421,000,13621,000,137
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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