WebHighest Common Factor of 12,15,21 is 3. Step 1: Since 15 > 12, we apply the division lemma to 15 and 12, to get. 15 = 12 x 1 + 3. Step 2: Since the reminder 12 ≠ 0, we apply … WebApr 8, 2024 · = 21 × 20 = 420 Therefore, the required H.C.F. and L.C.M. of 12, 21 and 15 are 3, 420 respectively. Hence, option C is the correct answer. Note: In this question, we …
4. What is the HCF of the smallest prime number and the snal 7
Web14 rows · So, HCF (12, 15) = 3. If you want to cross-check the answer, place the values in the highest ... WebMar 29, 2024 · Ex 1.2 , 3 (Method 1) Find the LCM and HCF of the following integers by applying the prime factorisation method. 12, 15 and 21 H.C.F = Product of smallest power of each common prime factor = 31 = 3 L.C.M … instant rice cooked in instant pot
Find the LCM and HCF of the following integers by applying the …
Web12, 15 and 21 Solution Solve for the H.C.F and L.C.M of the given numbers The prime factors of the given numbers are 12 = 2 × 2 × 3 = 2 2 × 3 1 15 = 3 × 5 = 3 1 × 5 1 21 = 3 × 7 = 3 1 × 7 1 The common factor = 3 ∴ H.C.F. ( 12, 15, 21) = 3 Now calculating the Least Common Multiple (LCM) of 12, 15 and 21 ∴ L.C.M. ( 12, 15, 21) = 2 2 × 5 1 × 3 1 × 7 1 WebApr 3, 2024 · HCF stands for highest common factor which is a common factor for all the given numbers but the highest one in the lot. Complete step-by-step answer: (i). Factors of 12 = 1 × 2 × 2 × 3 Factors of 15 = 1 × 3 × 5 Factors of 21 = 1 × 3 × 7 HCF (12, 15, 21) = 3 LCM (12, 15, 21) = 2 × 2 × 3 × 5 × 7 = 420 (ii). Factors of 17 = 1 × 17 WebApr 12, 2024 · What is the HCF of the smallest prime number and the snal 7 d 5. Write the number of zeroes in the end of the number whose prime factorisation is (CBSE 2024) 6. 2.7×53×32×17 HCF × LCM of 105 and 120 . 7. Given that HCF(135,225)=45, find the LCM(135,225) 8. the LCM of two numbers is 182 and their HCF is 13. jjs house pant suits for weddings