The function f is defined for all positive integers n by the following rule: f (n) is the number of positive integers each of which is less than n and has no positive factor in common with n other than 1. If p is any prime number, then f (p) =
A) p - 1
B) p - 2
C) (p + 1)/2
D) (p - 1)/2
E) 2
on a GMATPrep test
A) p - 1
B) p - 2
C) (p + 1)/2
D) (p - 1)/2
E) 2
on a GMATPrep test
The mind is everything. What you think you become. -Lord Buddha
Sanjeev K Saxena
Quantitative Instructor
The Princeton Review - Manya Abroad
Lucknow-226001
www.manyagroup.com
Sanjeev K Saxena
Quantitative Instructor
The Princeton Review - Manya Abroad
Lucknow-226001
www.manyagroup.com
