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2020 AMC 10A Problem 15

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2020 AMC 10A Problem 15AMC 10 Step by Step
Name:                             Date: September 13, 2026
Divisibility & Factors · difficulty 3 of 5 · about 4 min · position P11-15

A positive integer divisor of 12!12! is chosen at random. The probability that the divisor chosen is a perfect square can be expressed as mn\frac{m}{n} , where mm and nn are relatively prime positive integers. What is m+nm+n ?

  1. A)

    33

  2. B)

    55

  3. C)

    1212

  4. D)

    1818

  5. E)

    2323

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