Chapter 3 | Multiples and Factors | Class-5 DAV Primary Mathematics

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Chapter 3 Worksheet 8 | Multiples and Factors | Class-5 DAV Primary Mathematics

Unit 3 Worksheet 8 || Multiples and Factors

1. Tick (I) the correct answer.

(a) Prime factorization of 28 is

• 1 x 28

• 4 x 7

• 2 x 2 x 7

Chapter 3 | Multiples and Factors | Class-5 DAV Primary Mathematics

(b) Prime factorization of 42 is
• 2 x 21

• 42 x 1

• 2 x 3 x 7

• 6 x 7

Chapter 3 | Multiples and Factors | Class-5 DAV Primary Mathematics

(c) Prime factorization of 36 is
• 4 x 9

• 2 x 2 x 9

• 2 x 2 x 3 x 3

Chapter 3 | Multiples and Factors | Class-5 DAV Primary Mathematics

(d) Prime factorization of 84 is

• 42 x 2

• 2 x 2 x 3 x 7

• 4 x 21

• 2 x 7 x 6

Chapter 3 | Multiples and Factors | Class-5 DAV Primary Mathematics

2. State the answer In Yes or No.

(a) The prime factorization of 15 is 3 x 5.

(b) The prime factorization of 50 is 2 x 5 x 5.

(c) The prime factorization of 90 is 2 x 5 x 9.

(d) The prime factorization of 99 is 3 x 3 x 11.

(e) The prime factorization of 63 is 7 x 9.

(f) The prime factorization of 54 is 2 x 27.

Chapter 3 | Multiples and Factors | Class-5 DAV Primary Mathematics