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Learn in your speed, with individual attention - Teachoo Maths 1-on-1 Class


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Ex 3.5, 9 18 is divisible by both 2 and 3. It is also divisible by 2 × 3 = 6. Similarly, a number is divisible by both 4 and 6. Can we say that the number must also be divisible by 4 × 6 = 24? If not, give an example to justify your answer.Numbers divisible by 4 are 4, 8, 12, 16, 20, 24, 28, 32, 36,…… Numbers divisible by 6 are 6, 12, 18, 24, 30, 36,…….. Numbers divisible by 4 & 6 are 12, 24, 36,……….. We see that 12, 36, .. are not divisible by 24 So, a number divisible by 4 and 6 is not divisible by 24 Note: This is because 4 & 6 are not co-prime

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Davneet Singh

Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 13 years. He provides courses for Maths, Science, Social Science, Physics, Chemistry, Computer Science at Teachoo.