Progress in (G)CW factorization

The following table contains all the factorizations of (G)CW numbers which have been reported to me since 1st July 2000, with the exception that factors with fewer than 20 digits are omitted because they were so easy to find and there were so many of them.

      2000 July—September   2000 October—December
  2001 January—March    2001 April—June    2001 July—September   2001 October—December
  2002 January—March    2002 April—June    2002 July—September   2002 October—December
  2003 January—March    2003 April—June    2003 July—September   2003 October—December
  2004 January—March    2004 April—June    2004 July—September   2004 October—December
  2005 January—March    2005 April—June    2005 July—September   2005 October—December
  2006 January—March    2006 April—June    2006 July—September   2006 October—December
  2007 January—March    2007 April—June    2007 July—September   2007 October—December
  2008 January—March    2008 April—June    2008 July—September   2008 October—December
  2009 January—March    2009 April—June    2009 July—September   2009 October—December
  2010 January—March    2010 April—June    2010 July—September   2010 October—December
  2011 January—March    2011 April—June    2011 July—September   2011 October—December
  2012 January—March    2012 April—June    2012 July—September   2012 October—December
  2013 January—March    2013 April—June    2013 July—September   2013 October—December
  2014 January—March    2014 April—June    2014 July—September   2014 October—December
  2015 January—March    2015 April—June    2015 July—September   2015 October—December
  2016 January—March    2016 April—June    2016 July—September   2016 October—December
  2017 January—March    2017 April—June    2017 July—September   2017 October—December
  2018 January—March    2018 April—June    2018 July—September   2018 October—December
  2019 January—March    2019 April—June    2019 July—September   2019 October—December
  2020 January—March    2020 April—June    2020 July—September   2020 October—December
  2021 January—March    2021 April—June    2021 July—September    2021 October—December 

The key to the abbreviations used in the "Method" column in each of the above table of files is:
Name   Algorithm
alg: Algebraic factorization
Aur: Aurifeuillean factorization
ECM: Elliptic Curve Method
GNFS: General Number Field Sieve
lookup: Look-up from an external table, most often www.factordb.com
MPQS: Multiple Polynomial Quadratic Sieve
P-1: Pollard's P-1 method
P+1: Williams' P+1 method
SIQS: Self-Initializing Multiple Polynomial Quadratic Sieve
SNFS: Special Number Field Sieve

The table below shows how many factors each contributor has reported since the date given in the column header.

2000-09-01 Name 2016-11-20 Name 2020-11-20 Name 2021-01-01 Name








10976 PC Leyland 607 SS Wagstaff 185 SS Wagstaff 154 SS Wagstaff
6691 N Daminelli 161 R Hooft PC Leyland PC Leyland
2245 SS Wagstaff 92 PC Leyland      
774 R Hooft 27 yoyo@home      
757 Jo YU NFS@Home & S Wellman      
429 M Rodenkirch J Gilchrist      
385 S Hoogendoorn S Wellman      
332 M Vang S Wellman & NFS@Home      
225 J Dilick NFS@Home      
147 J Crump NFS@Home & C Pinho      
140 J Gilchrist M Vang      
118 yoyo@home D Delgado & NFS@Home & S Wellman      
100 R Stanilewicz         
79 P Zimmermann         
74 T Womack & NFS@Home & R Hooft         
65 G Reynolds         
65 D Leclair         
50 G Childers & NFS@Home         
44 J Becker         
33 S Wellman & NFS@Home         
32 S Wellman & NFS@Home & R Hooft         
30 R Dickerson & NFS@Home & R Hooft         
28 R Recker         
24 SA Irvine         
22 V de Hollander & NFS@Home & R Hooft         
21 J Girsch         
19 T Womack & NFS@Home         
19 R Gevaryahu         
18 W Roonguthai         
18 T Charron         
18 J Leherbauer         
17 T Womack         
17 C Pinho         
17 B Meekins & NFS@Home & R Hooft         
13 R Dickerson         
13 P Underwood         
13 J Hansen         
12 S Wellman         
12 R Dickerson & NFS@Home         
11 F Schickel         
10 T Sorbera & NFS@Home & R Hooft         
10 C Pinho & NFS@Home & R Hooft         
RSALS & C Pinho         
S Batalov         
M Vang & NFS@Home & R Hooft         
L Debroux & NFS@Home & R Hooft         
W Gnadt         
R Verser         
P Jammes         
P Frakes         
NFS@Home & S Wellman         
L Debroux         
B Meekins & NFS@Home         
Y Lemsafer & NFS@Home & R Hooft         
U Heinemann         
NFS@Home & R Hooft         
J Becker & NFS@Home & R Hooft         
V de Hollander & NFS@Home         
M Steine & NFS@Home         
M Klasson         
L Fousse         
L Debroux & NFS@Home         
J McClintock & NFS@Home         
D Domanov & NFS@Home         
Cunningham         
B Guo & NFS@Home & R Hooft         
G Childers & NFS@Home & R Hooft         
D Domanov & NFS@Home & R Hooft         
A Edwards         
RSALS & R Dickerson         
RSALS & PC Leyland         
RSALS & M Steine         
RSALS & L Debroux         
RK Wackerbarth         
RD Silverman         
O Ístlin         
NFS@Home         
L Morelli         
J Polzer         
C Pinho & NFS@Home         
BA Dodson         
Anonymous         
RSALS & W Winslow         
RD Silverman & PC Leyland         
R Backstrom         
PC Leyland & NFS@Home & R Hooft         
P Strohl         
NFSNET"         
NFSNET" & CWI         
NFS@Home & T Womack         
NFS@Home & C Pinho         
MB Porter         
M Bosse & yoyo@home         
L Vornicu         
J Santala         
J McClintock & NFS@Home & R Hooft         
J King & NFS@Home         
G Cockcroft         
G Childers         
F Bosia         
E Branger         
D Delgado & NFS@Home & S Wellman         
CADO         
AK Lenstra         
AK Lenstra & M Manasse