Question 1 - CBSE Class 10 Sample Paper for 2020 Boards - Maths Basic - Solutions of Sample Papers for Class 10 Boards

Last updated at July 23, 2026 by Teachoo

HCF of 168 and 126 is

(a) 21 (b) 42 (c) 14 (d) 18

HCF of 168 and 126 is (a) 21 (b) 42 (c) 14 (d) 18 - Teachoo

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Question 1 HCF of 168 and 126 is (a) 21 (b) 42 (c) 14 (d) 18 Doing prime factorization of both 168 and 126 168 = 2 × 2 × 2 × 3 × 7 126 = 2 × 3 × 3 × 7 ∴ HCF = 2 × 3 × 7 = 42 So, (b) is the correct answer

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