The 20 Largest Known Cunningham Chains (1st kind) http://primes.utm.edu/top20/page.php?id=19 The Prime Pages keeps a list of the 5000 largest known primes, plus a few each of certain selected archivable forms and classes. These forms are defined in this collection's home page. en-us Copyright 2006, The Prime Pages caldwell@utm.edu (Dr. Chris K. Caldwell) 600 379185609*2^27129-1 http://primes.utm.edu/primes/page.php?id=90888 Mon, 16 Nov 2009 15:20:49 -0600 This prime has 8176 digits, was found by L983 on 16 Nov 2009. It has rank 1 on the list of Cunningham Chains (1st kind), and rank 46098 on the list of largest known primes. http://primes.utm.edu/primes/page.php?id=90888 164210699973*2^26328-1 http://primes.utm.edu/primes/page.php?id=78267 Mon, 07 Aug 2006 15:54:03 -0500 This prime has 7937 digits, was found by p158 on 07 Aug 2006. It has rank 2 on the list of Cunningham Chains (1st kind), and rank 46293 on the list of largest known primes. http://primes.utm.edu/primes/page.php?id=78267 3020255265*2^20025-1 http://primes.utm.edu/primes/page.php?id=74171 Mon, 18 Apr 2005 01:01:36 -0500 This prime has 6038 digits, was found by p133 on 18 Apr 2005. It has rank 3 on the list of Cunningham Chains (1st kind), and rank 49481 on the list of largest known primes. http://primes.utm.edu/primes/page.php?id=74171 16219299585*2^16614-1 http://primes.utm.edu/primes/page.php?id=73320 Mon, 31 Jan 2005 10:08:44 -0600 This prime has 5012 digits, was found by p158 on 31 Jan 2005. It has rank 4 on the list of Cunningham Chains (1st kind), and rank 52034 on the list of largest known primes. http://primes.utm.edu/primes/page.php?id=73320 2288999415*2^15939-1 http://primes.utm.edu/primes/page.php?id=71014 Thu, 22 Jul 2004 16:16:17 -0500 This prime has 4808 digits, was found by p133 on 22 Jul 2004. It has rank 5 on the list of Cunningham Chains (1st kind), and rank 52796 on the list of largest known primes. http://primes.utm.edu/primes/page.php?id=71014 953477584*5501#-1 http://primes.utm.edu/primes/page.php?id=74751 Thu, 09 Jun 2005 20:07:29 -0500 This prime has 2355 digits, was found by p133 on 09 Jun 2005. It has rank 1 on the list of Cunningham Chains (1st kind), and rank 59083 on the list of largest known primes. http://primes.utm.edu/primes/page.php?id=74751 41812496896*3067#-1 http://primes.utm.edu/primes/page.php?id=71427 Fri, 27 Aug 2004 13:04:07 -0500 This prime has 1316 digits, was found by p133 on 27 Aug 2004. It has rank 2 on the list of Cunningham Chains (1st kind), and rank 69046 on the list of largest known primes. http://primes.utm.edu/primes/page.php?id=71427 191881920*3067#-1 http://primes.utm.edu/primes/page.php?id=70905 Tue, 06 Jul 2004 17:52:15 -0500 This prime has 1314 digits, was found by p133 on 06 Jul 2004. It has rank 3 on the list of Cunningham Chains (1st kind), and rank 69191 on the list of largest known primes. http://primes.utm.edu/primes/page.php?id=70905 13657785480*3049#-1 http://primes.utm.edu/primes/page.php?id=42651 Thu, 31 Oct 2002 23:59:59 -0600 This prime has 1309 digits, was found by p94 on 31 Oct 2002. It has rank 4 on the list of Cunningham Chains (1st kind), and rank 69516 on the list of largest known primes. http://primes.utm.edu/primes/page.php?id=42651 19743490208*2801#-1 http://primes.utm.edu/primes/page.php?id=73864 Fri, 25 Mar 2005 21:16:50 -0600 This prime has 1208 digits, was found by p133 on 25 Mar 2005. It has rank 5 on the list of Cunningham Chains (1st kind), and rank 73965 on the list of largest known primes. http://primes.utm.edu/primes/page.php?id=73864