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    • Question

      Let ‘n’ be the smallest perfect square divisible by 22,

      26, 33 and 39. What is the remainder when ‘n’ is divided by 100?
      A 53 Correct Answer Incorrect Answer
      B 14 Correct Answer Incorrect Answer
      C 30 Correct Answer Incorrect Answer
      D 64 Correct Answer Incorrect Answer

      Solution

      ATQ,

      LCM of 22, 26, 33 and 39 = 2574

      Since, 2574 = (2 × 3 × 11 × 13 × 3)

      = 2 × 3 × 3 × 11 × 13

      To make it a perfect square, multiply by (2 × 11 × 13) = 286

      So, required number = 2574 × 286 = 736164

      736164 ÷ 100 = 7361 × 100 + 64

      So, desired remainder = 64

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