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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

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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 13 years. He provides courses for Maths, Science, Social Science, Physics, Chemistry, Computer Science at Teachoo.