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April 6th, 2015, 06:39 AM  #1 
Newbie Joined: Jul 2014 From: Taiwan Posts: 8 Thanks: 0  How to solve this formula for primes? 
April 6th, 2015, 07:33 AM  #2 
Global Moderator Joined: Nov 2006 From: UTC 5 Posts: 16,046 Thanks: 937 Math Focus: Number theory, computational mathematics, combinatorics, FOM, symbolic logic, TCS, algorithms 
The formula is definitely incorrect. It predicts that pi(3.9999) is 39996.614... which is far from the correct answer of 2.


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