If \(f(n)\) is the product of \(n\) consecutive integers from \(1\) to \(N,\) then what is the number of odd factors of

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If \(f(n)\) is the product of \(n\) consecutive integers from \(1\) to \(N,\) then what is the number of odd factors of \(f(10).\)

A) 30
B) 60
C) 120
D) 256
E) 512

Answer: A

Source: e-GMAT
Source: — Problem Solving |