Question

Identify the composite number.
( 2, 3, 4, 5 )

Answer 1

Answer:

$4$

Step-by-step explanation:

Given : The set of number contains $(2,3,4,5)$

To find : Composite number

Solution :

• The given numbers are $2,3,4,5$.
• We have to identify the composite number.
• In order to identify the composite number, first we should know what are the composite numbers.
• Lets consider an example. Take a number x.
• If we are able to write the number as x = a*b, where a or b cannot be 1, then we call x as composite.
• If a or b is 1, then x is prime.
• If a and b are both one, then the number is just a multiplicative or division identity.
• Here, in this case, $2=2*1$ , it is a prime number.

                           $3=3*1$, it is a prime number.

                           $4=4*1$, it is composite number.

                           $5=5*1$, it is a prime number.

• ∴ $4$ is a composite number.

Answer 2

Given,

$2,3,4,5$

We have to identify the composite number

First we have to know the composite number

• Composite number: A positive integer with factors other that $1$ and itself. A number is not prime.
• For example:
• 8
• Factors of $8$ $= 1,2,4,8$

Now,

First we have to written factors of $2,3,4,5$

$2=1,2$

$3=1,3$

$4=1,2,4$

$5=1,5$

$2,3,5$ are the prime numbers

$4$ has multiple factors

Therefore, the composite number is $4$.