CBSE Class 7 Mathematics Question 12 of 13

Finding Common Ground — Question 12

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12
Question
What is the smallest number that is a multiple of 1, 2, 3, 4, 5, 6, 8, 9, 10? Do you remember the answer from Grade 6, Chapter 5?
Answer

1 = 1 2 = 2 3 = 3 4 = 2 × 2 5 = 5 6 = 2 × 3 7 = 7 8 = 2 × 2 × 2 9 = 3 × 3 10 = 2 × 5 LCM(1, 2, 3, 4, 5, 6, 7, 8, 9, 10) = 2 × 2 × 2 × 3 × 3 × 5 = 8 × 9 × 5 = 360 Yes, this is the same answer. You might remember from grade 6, Chapter 5, Prime Time.