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2009 AMC 10A Problem 9

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2009 AMC 10A Problem 9AMC 10 Step by Step
Name:                             Date: September 13, 2026
Sequences & Series · difficulty 2 of 5 · about 2 min · position P1-10

Positive integers aa , bb , and 20092009 , with a<b<2009a<b<2009 , form a geometric sequence with an integer ratio. What is aa ?

  1. A)

    77

  2. B)

    4141

  3. C)

    4949

  4. D)

    289289

  5. E)

    20092009

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