AMC 10A 2009 Problem 9

Past Contests AMC 10 AMC 10A - 2009
, , ,
1

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

Answer Choices
A. 7
B. 41
C. 49
D. 287
E. 2009