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 2h comment Finding primes that have certain property The problem lies in p+1, the necessarily composite p+1 can comply with condition for exiting while 3h comment Finding primes that have certain property your code does not produce only primes: note-19980,28980,29790,29880, etc 6h comment Finding the period of an array of integers thank you for introducing me to "Periodic" argument of PadRight :) 7h answered Plotting separatrices for nonlinear system 8h comment Finding primes that have certain property @Mr.Wizard it never ceases to amaze me how much I learn from your code and how I over complicate measures...:) 8h revised Finding primes that have certain property added 340 characters in body 8h answered Finding primes that have certain property 9h answered Finding the period of an array of integers 1d comment Next highly composite number? @Sasha FYI nextn(1230233,factors=c(2,3,5,7,11)) in R also yields...1232000 but I assume you already know that 1d revised Next highly composite number? added 268 characters in body 1d comment Next highly composite number? @Sasha I will add as update with attribution to you 1d comment Next highly composite number? @Sasha thank you for the instructive advice...my time limited aim was to reproduce the R implementation and agree entirely subset for large list of primes would be unwieldy but for specified purpose, most of time 3 primes, not too expensive...but accept entirely your more efficient code. 1d reviewed Close Nest-Recursion leads to overflow - Numerical calculation of Lyapunov exponents 1d reviewed Close How to make work Plus function? 1d answered How to check if all the members of list lies in specific range 1d revised Next highly composite number? added 182 characters in body 1d answered Next highly composite number? 2d comment Plot with tick labels but without ticks @Kuba...oh! sorry but it matches the intended result on image...I am sorry I misinterpreted...just sought to reproduce image but not the text 2d answered Plot with tick labels but without ticks 2d comment I need help with Bifurcation curve in a RQ parametric space perhaps this is related and motivating: ubpdqnmathematica.wordpress.com/2014/08/18/…