Question
What is the least number that should be multiplied to
735 so that it becomes divisible by 42?Solution
Since, 735 = 3 Γ 5 Γ 7 Γ 7 To be divisible by β42β, a number must be divisible by all 2, 3 and 7. Since, 735 is divisible by β3β and β7β. So, the least number that we need to multiply is β2β. Therefore, required answer is 2.

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