Results so far. Here are the (up to) 10 largest factors (of at least 58 digits) found by ECM so far in 2018 (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, 2017):
| digits | factor | from | B1 | sigma | date | who |
| 76 | 5191873720703506118777751448022113902214321958414685694699686672326450173651 | 175175+176176 | 260e6 | 896958136 | 27 May 2018 | Ryan P. |
| 69 | 444391024295554825813920762553875384889500352609895126972409492191251 | L(2875) | 1e9 | 2807183577 | 1st Jul 2018 | T. Womack |
| 67 | 8801385944588148587153855343468735536920009142571596149280058509737 | (2127-1)24-1 | 260e6 | 11839839710820506480 | 12 May 2018 | yoyo@home |
| 65 | 98107727703524978461809065829677822612393113199510243225992694483 | 276*9276+1 | 260e6 | 1:1267584011 | 3 May 2018 | R. Hooft |
| 63 | 339309255680410415657068111365964544508075829804149997978999513 | 12337-1 | 1e9 | 1:2161087723 | 08 Jul 2018 | S. Wagstaff |
| 62 | 97386481382680278816779064674442001691408659739676965811828871 | 34*10187-61 | 850e6 | 1602514529 | 30 Jan 2018 | J. Parker-Burlingham |
| 61 | 1189185777673768464216852029408188362424066650143483192051761 | 3677+1 | 1e9 | 1:24998675 | 6 May 2018 | S. Wagstaff |
| 59 | 89889606269073901082901578436277965983883967076039535258233 | 10388+1 | 7e8 | 1:4155635103 | 30 Jun 2018 | S. Wagstaff |
| 58 | 1015795485009910558877802407870941315114871334143994803197 | 591*9591-1 | 11e6 | ??? | 12 Jul 2018 | P. Leyland |
| 56 | 13511343345592021540532368355487578496800124905875639501 | 11250+6250 | 1e9 | 1887536245 | 7 Jul 2018 | B. Silverman |
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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