The prime factorisation of 3825 is

(a) 3 × 5 2 × 21   (b) 3 2 × 5 2 × 35  

(c) 3 2 × 5 2 × 17   (d) 3 2 × 25 × 17

 

This question is inspired from Ex 1.2, 1 (iii) - Chapter 1 Class 10 - Real Numbers

Ques 13 (MCQ) - The prime factorisation of 3825 is - Teachoo Maths - CBSE Class 10 Sample Paper for 2022 Boards - Maths Basic [MCQ]

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Question 13 The prime factorisation of 3825 is (a) 3 × 52 × 21 (b) 32 × 52 × 35 (c) 32 × 52 × 17 (d) 32 × 25 × 17 Hence, 3825 = 3 × 3 × 5 × 5 × 17 = 32 × 52 × 17 So, the correct answer is (c)

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Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 14 years. He provides courses for Maths, Science and Computer Science at Teachoo