Formulas for Primes
摘要
We denote the nth prime by \(p_n\) . For example, \(p_4=7\) . An early formula for \(p_{n+1}\) ( \(n\ge 0\) ) was created in 1900 by the German mathematician Casper IsenkraheIsenkrahe, Casper (1844–1921). He used the expression.