Question

Answer the following question:
What is a composite number?

Answer 1

Hint: For this question we have to give an explanation for a composite number. For that, first we have to define a composite number and then explain what composite numbers are with a few examples of some explanation. Also, give a contrary using an example of a prime number.

Complete step-by-step solution:
Composite numbers are defined as the set of whole numbers that have more than two factors which are not itself and one. In other words, composite numbers can be defined as the numbers which are not prime because they are divisible by more than two numbers.
A composite number is also a positive integer that can be formed by multiplying two small positive integers. Defined as a positive integer which has at least one integer apart from one and itself. Every integer is divided into two parts. Either prime, or composite.
Let us consider a few examples.
The first composite number is \[4\].
\[4\] has the factors: \[1,2\] and \[4\].
Its factors are more than two, that is, one, itself and another number. Therefore, it is a composite number.
Now, taking a bit higher composite number, \[40\].
\[40\] has the factors: \[1,2,4,5,8,10,20\] and \[40\].
The factors are finite up to a number which are not one and itself.
Therefore, \[40\] is a composite number.
On the contrary, let us take the prime numbers.
For example, \[7\]
The factors of \[7\] are \[1\] and \[7\].
There are no other factors apart from these two, i.e. apart from one and itself. Therefore, it is a prime number.
Composite numbers are also called “rectangular numbers.”

Note: In contrary to composite numbers is prime number. A composite number is those whose factors are only one and itself and they do not have any other factors nor are divisible by any other numbers apart from one and itself. But a prime number (or a prime) is a natural number greater than 1 that is not a product of two smaller natural numbers.