Q: Is 21,570 a Composite Number?

 A: Yes, 21,570 is a composite number.

Why is 21,570 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 21,570 can be evenly divided by 1 2 3 5 6 10 15 30 719 1,438 2,157 3,595 4,314 7,190 10,785 and 21,570, with no remainder.

Since 21,570 cannot be divided by just 1 and 21,570, it is a composite number.


More Examples

Number 21,56821,56921,57121,572
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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