Question

    How many factors of 23 × 33 × 54 ×91× is divisible by 50 but not by 100?

    A 24 Correct Answer Incorrect Answer
    B 36 Correct Answer Incorrect Answer
    C 40 Correct Answer Incorrect Answer
    D 36 Correct Answer Incorrect Answer

    Solution

    50=52×2 100=52×22 23 × 33 × 54 × 91 =52×2(22×52×33×91) =52×33×91 Total factor=3×4×2 =24.

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