Is 68600 a perfect cube if not find the smallest number by which 68600 must be multiplied to get a perfect cube *? Chi Tiết

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We have, 68600 = 2 × 2 × 2 × 5 × 5 × 7 × 7 × 7. Nội dung chính Example 5 – Chapter 7 Class 8 Cubes and Cube Roots Is 68600 a perfect cube if not find the smallest number? Is 68600 a perfect cube if not find the smallest number by which 6800 must be multiplied to get a perfect cube? Is 68600 a perfect square? What is the cube of 68600? Is 2888 a perfect cube if not find the smallest number that must be a multiplied to get a perfect cube and B to divide to get a perfect cube? Is 53240 is a perfect cube if not find smallest number by it? In this factorisation, we find that there is no triplet of 5. So, 68600 is not a perfect cube. To make it a perfect cube we multiply it by 5. Thus, 68600 × 5 = 2 × 2 × 2 × 5 × 5 × 5 × 7 × 7 × 7 = 343000, which is a perfect cube. Getting Image Please Wait… Register now for special offers +91 trang chủ > English > Class 8 > Maths > Chapter > Cubes And Cube Roots > Is 68600 a perfect cube? If no… UPLOAD PHOTO AND GET THE ANSWER NOW! Text Solution Solution : Factorization of `68600=2xx2xx2xx5xx5xx7xx7xx7`<br> No, it is not a perfect cube<br> after multiplying by `5` this number can be a perfect cube. Answer Step by step solution by experts to help you in doubt clearance & scoring excellent marks in exams. Add a public comment… Follow Us: Popular Chapters by Class: Example 5 – Chapter 7 Class 8 Cubes and Cube Roots Last updated at Sept. 11, 2018 by Solve all your doubts with Teachoo Black (new monthly pack available now!) Transcript Example 5 Is 68600 a perfect cube? If not, find the smallest number by which 68600 must be multiplied to get a perfect cube. We see that 68600 = 2 × 2 × 2 × 5 × 5 × 7 × 7 × 7 Since 5 does not occur in triplets, ∴ 68600 is not a perfect cube. So, we multiply by 5 to make triplet So, our number becomes 68600 × 5 = 2 × 2 × 2 × 5 × 5 × 7 × 7 × 7 × 5 = 2 × 2 × 2 × 5 × 5 × 5 × 7 × 7 × 7 Now, it becomes a perfect cube. So, we multiply 68600 by 5 to make it a perfect cube Is 68600 a perfect cube if not find the smallest number? Solution : Factorization of `68600=2xx2xx2xx5xx5xx7xx7xx7`<br> No, it is not a perfect cube<br> after multiplying by `5` this number can be a perfect cube. Is 68600 a perfect cube if not find the smallest number by which 6800 must be multiplied to get a perfect cube? Therefore, we have to multiply 68600 by 5 to make it a perfect cube. Is 68600 a perfect square? The prime factorisation of 68600 = 2 × 2 × 2 × 5 × 5 × 7 × 7 × 7. In this factorisation, we find that there is no triplet of 5. So, 68600 is not a perfect cube. What is the cube of 68600? To make it a perfect cube we multiply it by 5. Thus, 68600 × 5 = 2 × 2 × 2 × 5 × 5 × 5 × 7 × 7 × 7 = 343000, which is a perfect cube. Is 2888 a perfect cube if not find the smallest number that must be a multiplied to get a perfect cube and B to divide to get a perfect cube? We observe that if 288 is multiplied by (2 x 3), then its prime factors will exist in triples. Thus, the required smallest number by which 288 be multiplied to make it a perfect cube i: (2 x 3), i.e. 6. Is 53240 is a perfect cube if not find smallest number by it? ∴ The smallest number by which 53240 should be divided to make it a perfect cube is 5. Was this answer helpful?

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