Question

What are composite numbers?

Answer 1

Determining the composite numbers.

Whole integers that would not be prime called composite numbers i.e. they are divisible by at least one number other than $1$ and number itself.

The smallest composite integer is $4$, whereas the smallest odd composite number is $9$. Besides $1$, every natural number is either a prime or a composite number. Here are some instances of composite numbers:

$8$ :Factors of $8$ are$1,2,4,8$

$12$ :Factors of $12$ are $1,2,3,4,6,12$

$15$ :Factors of $15$ are$1,3,5,15$

$34$ :Factors of $34$ are $1,2,17,34$

The above examples are composite as it as factors other than $1$ and number itself.

Hence, the composite number is divisible by at least one number other than $1$ and the number itself.