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# Find the common factors of:

(a) 4, 8 and 12

(b) 5, 15 and 25

**Solution:**

We will be using the concept of factors to solve this.

(a) Given numbers are: 4, 8 and 12

Factors of 4 are 1, 2, 4

Factors of 8 are 1, 2, 4, 8

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

Therefore, the common factors of 4, 8, and 12 are 1, 2, and 4.

(b) Given numbers are: 5, 15 and 25

Factors of 5 are 1, 5

Factors of 15 are 1, 3, 5, 15

Factors of 25 are 1, 5, 25

Therefore, the common factors of 5, 15, and 25 are 1 and 5.

You can also check your answer on Online Common Factor Calculator.

NCERT Solutions Class 6 Maths Chapter 3 Exercise 3.4 Question 2

## Find the common factors of (a) 4, 8, and 12 (b) 5, 15 and 25

**Summary:**

(a) The common factors of 4,8 and 12 are 1,2 and 4. (b) The common factors of 5,15 and 25 are 1 and 5.

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