Thank you for using the timer!
We noticed you are actually not timing your practice. Click the START button first next time you use the timer.
There are many benefits to timing your practice, including:
The function f is defined for all positive integers n by the [#permalink]
18 May 2008, 11:06
This topic is locked. If you want to discuss this question please re-post it in the respective forum.
2. 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 than f(p) =