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Results so far. Here are the (up to) 10 largest factors (of at least 60 digits) found by ECM so far in 2017 (see also the all-times top-50 table, and the top ten from 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016):

xf
digits factor from B1 sigma date who
68 10668670230000179802365738756155613324642694467793437268722465236229 22246+1 1e9 1:736878906 11 Apr 2017 S. Wagstaff
66 430290068517717503314541569581514324311872414409341453561896330801 10730+1 850e6 1:3948033333 13 May 2017 yoyo@home/Pulsar2017
62 82246854728142924005776121999404351754306984763883228668451697 22566+1 1e9 2977144520 21 Feb 2017 S. Wagstaff
61 8164889805692762476297757873090780473989750955045866494742961 886*5886-1 11e6 1:2068124277 21 May 2017 R. Hooft
61 4073334782976241614987382168853459236198534017674709773325179 P92#-1 110e6 3:2497578024 23 May 2017 T. Nohara
61 1144145266454516489033856771210558013734273396016810889657653 676*7676-1 260e6 ??? 14 May 2017 yoyo@home/Ralfy

ECMNET Newsletters: number 1 (13 Feb 1998), number 2 (15 Mar 1998), number 3 (17 Apr 1998), number 4 (15 May 1998), number 5 (18 June 1998), number 6 (15 July 1998), number 7 (17 August 1998), number 8 (17 September 1998), number 9 (16 October 1998), number 10 (23 November 1998), number 11 (17 December 1998), number 12 (19 April 1999), number 13 (16 December 1999).


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