Chapter 4: Q2. (page 177)

Find the greatest common factor of the numbers
$21, 42$

Short Answer

Expert verified

The greatest common factor is $21$ .

Step by step solution

Step -1 - Apply the concept of Factorization

In this, simply use the concept of factorization of the numbers and to get the common number from the both and do the multiplication if two numbers comes out.

Step -2 – Find the Factorization

Here, the numbers are $21, 42$ .

Factorization of $21$ is $21 = 3 \times 7$ .

Factorization of $42$ is $42 = 2 \times 3 \times 7$ .

Step -3 – Finding the common factor

Now, from the above factorization, the common multiple is $3 \times 7$ .

So, the greatest common factor is $3 \times 7 = 21$ .

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Find the greatest common factor of the numbers
$21, 42$

Short Answer

Step by step solution

Step -1 - Apply the concept of Factorization

Step -2 – Find the Factorization

Step -3 – Finding the common factor

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Find the greatest common factor of the numbers21,42

Short Answer

Step by step solution

Step -1 - Apply the concept of Factorization

Step -2 – Find the Factorization

Step -3 – Finding the common factor

One App. One Place for Learning.

Most popular questions from this chapter

Recommended explanations on Math Textbooks

Calculus

Discrete Mathematics

Mechanics Maths

Decision Maths

Logic and Functions

Pure Maths

Study anywhere. Anytime. Across all devices.

Find the greatest common factor of the numbers
$21, 42$