Answer VerifiedHint: To solve the given question, we will first find out what are the full forms of LCM and HCF and what they actually are. Then, we will write the numbers 306 and 657 as the product of prime numbers. Then we will select the numbers which are common to both 306 and 657. Then we will multiply these selected numbers. The LCM of these two numbers will be a product of these selected numbers and the remaining numbers. Complete step-by-step answer: The prime factorization of 657 is: Thus, we can say that, \[306=2\times 3\times 3\times 17\] \[657=3\times 3\times 73\] Here, we can see that the numbers 3 and 3 are common to both 306 and 657. Their product will be \[3\times 3=9.\] Now, we will multiply this product to the remaining numbers which will be equal to the LCM of these two numbers. The remaining numbers are 2, 17, and 73. Thus, the LCM will be \[LCM=9\times 2\times 17\times 73\] \[\Rightarrow LCM=22338\] Thus, LCM of 306 and 657 is 22338. Note: The alternate method of finding the LCM of 306 and 657 is shown below. We know
that if tow positive integers are given then their product will be equal to the product of HCF and LCM of these two integers. Thus, we can say that, Solution: We know that LCM × HCF = product of two given integers Given, HCF (306, 657) = 9 We have to find, LCM (306, 657) We have the given numbers 306 and 657. Hence, we can find the product of 306 and 657. The HCF of these two numbers is 9. Substitute these values in the above formula and find the value of the unknown i.e. LCM. LCM × 9 = 306 × 657 LCM = (306 × 657) / 9 LCM = 34 × 657 LCM = 22338 ☛ Check: NCERT Solutions for Class 10 Maths Chapter 1 Video Solution: Given that HCF (306, 657) = 9, find LCM (306, 657)NCERT Solutions Class 10 Maths Chapter 1 Exercise 1.2 Question 4 Summary: Given that HCF (306, 657) = 9, the LCM (306, 657) is 22338. ☛ Related Questions:
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Aug 13, 2019 by KumarManish (57.9k points) Best answer HCF (306, 657) अर्थात् 306 और 657 का HCF = 9 चूंकि LCM x HCF = संख्याओं का गुणनफल ← Prev Question Next Question → Find MCQs & Mock Test
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