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      Question

      data-sheets-value="{"1":2,"2":"(33^12-1) is divisible by "}" data-sheets-userformat="{"2":769,"3":{"1":0},"11":4,"12":0}">(3312-1) is divisible by
      A 5 Correct Answer Incorrect Answer
      B 7 Correct Answer Incorrect Answer
      C 8 Correct Answer Incorrect Answer
      D 15 Correct Answer Incorrect Answer
      E None of these Correct Answer Incorrect Answer

      Solution

      Remember that an-bn is always divisible by a-b .
      Hence (3312 -1) means (3312 -112) will be divisible by (33-1) or 32
      Hence, by options, we can say that (3312 -1) is divisible by 8.

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