The ECMNET Project

[introduction]   [quick start]   [download GMP-ECM]   [candidates]   [optimal parameters]   [Cunningham project]   [related software]  
[champions for ECM, P-1, P+1]   [NFS@home]   [mersenneforum] [GMP-ECM builds on Debian] [coverage] [coverage with gpu]
News:

Results so far. Here are the (up to) 10 largest factors (of at least 60 digits) found by ECM so far in 2021 (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, 2018, 2019, 2020):

digits factor from B1 sigma date who
74 29061871024474524652460048148671349817057591121446211165236889497476421553 21429+1 260e6 0:16049588211814812728 10 Feb 2021 R. Propper
74 25707943518696221194354398472561375355836712931411426198630128562025289803 A(4788,12584) 260e6 1:1625299226 31 Mar 2021 R. Propper
70 4702574864356903668328925230483249938419748952832641483390255334999479 5493-1 13e8 1:3612551401 04 Jan 2021 S. Wagstaff
69 683802217606094509460359945174630997716878924606013194220815953901277 22822+1 18e8 1:3838493405 01 Mar 2021 S. Wagstaff
69 457309376061341968858969907539927424797564127673204762828701146483601 22390+1 16e8 1:195128836 09 Jan 2021 S. Wagstaff
69 194038896022637781283943529202525374330942645948410515792534794865319 21393-1 16e8 1:1115269384 25 Mar 2021 S. Wagstaff
67 1162316224302205204133633045083472251018288020441503062949918912461 22570+1 18e8 1:2749941715 18 Feb 2021 S. Wagstaff
66 159424401285021433633036984212552441813954559105788158682518270641 22822+1 14e8 1:191735519 03 Jan 2021 S. Wagstaff
64 5940231518639818133881548617394754356089382789141290697209920297 22978+1 9e8 1:472852269 01 Jan 2021 S. Wagstaff
64 1181944190217838168575602563426725286703053115907380051630816233 3823-1 13e8 1:241190710 06 Jan 2021 S. Wagstaff

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).


Please send an email to ``zimmerma [at] loria (dot) fr'' for any remark about this page.


count visitors since July 1, 1999