6. Explain why 7×11×13+13 and 7×6×5×4×3×2×1+5 are composite numbers. Previous Next Class 10 Real Numbers Exercise 1.1 1. Express each number as a product of its prime factors : (i) 140 …
5. Check whether 6n can end with the digit 0 for any natural number n. Previous Next Class 10 Real Numbers Exercise 1.1 1. Express each number as a product of its prime factors : (i) 140 …
4. Given that HCF (306, 657) = 9, find LCM (306, 657). Previous Next Class 10 Real Numbers Exercise 1.1 1. Express each number as a product of its prime factors : (i) 140 …
3. Find the LCM and HCF of the following integers by applying the prime factorization method. (i) 12, 15 and 21 (ii) 17, 23 and 29 (iii) 8, 9 and 25 Previous Next Class 10…
2. Find the LCM and HCF of the following pairs of integers and verify that LCM × HCF = product of the two numbers. (i) 26 and 91 (ii) 510 and 92 (iii)…
1. Express each number as a product of its prime factors : (i) 140 (ii) 156 (iii) 3825 (iv) 5005 (v) 7429…
