Thread: Prime counting function View Single Post
 2018-02-26, 18:21 #2 CRGreathouse     Aug 2006 2×29×103 Posts Let me see if I understand. You're trying to estimate the number of primes in an interval which is a below (30n + 1)^2, and your estimate is that if the interval has length L, there are about $L\prod_{7\le p\le 30n+1}\frac{p-1}{p}$ primes. Is this right?