*** SEARCH FOR NINE CONSECUTIVE PRIMES IN ARITHMETIC PROGRESSION *** *** NEWSLETTER/5 *** 15 January 1998 *** SUCCESS!! One of our PC helpers, Manfred Toplic from Klagenfurt in Austria, just found a value of N, namely 500996388736659, which gives nine consecutive primes in arithmetic progression. His e-mail is reproduced below. Therefore you can stop the search. Many thanks to all of you for your help. We will send you shortly an official announcement. Please can you report (Paul Zimmermann will collect the information for the Unix machines): - which kind of computers you used - how many computers you used - the number of ranges you have tested (2.5 if you did 2 and a half) - the estimated cpu time (if possible) This will help us to estimate the total effort which was invested in this search. The first prime of the arithmetic progression is: 996794320667010864844906536958535616389823640809916183957740485855290714 75461114799677694651 ##################################################################### Return-Path: From: Toplic Manfred PZK To: "'paul.zimmermann@loria.fr'" Subject: 9 CP IN AP FOUND !!!!!!!!!! Date: Thu, 15 Jan 1998 15:04:43 +0100 X-Priority: 1 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.0.1457.3) Content-Type: text/plain Hello ! 9 CP IN AP FOUND FOR: R 9 500996388736659 ap=9 cp=9 [-1:C*P.P.P.P.P.P.P.P.P*C:+9] A lucky day ! Manfred Toplic Klagenfurt, Austria E-Mail: ToplicM@Klagenfurt.Spardat.at ##################################################################### *** Harvey Dubner <70372.1170@compuserve.com> Tony Forbes Paul Zimmermann Nik Lygeros Michel Mizony