Q: Is 21,525 a Composite Number?

 A: Yes, 21,525 is a composite number.

Why is 21,525 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 21,525 can be evenly divided by 1 3 5 7 15 21 25 35 41 75 105 123 175 205 287 525 615 861 1,025 1,435 3,075 4,305 7,175 and 21,525, with no remainder.

Since 21,525 cannot be divided by just 1 and 21,525, it is a composite number.


More Examples

Number 21,52321,52421,52621,527
Composite? noyesyesyes
  • All positive natural numbers are either a prime number or a composite number (except the number 1, which is neither).

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