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
  2022 January—March    2022 April—June    2022 July—September   2022 October—December
  2023 January—March    2023 April—June    2023 July—September   2023 October—December
  2024 January—March    2024 April—June    

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 2019-04-16 Name 2023-04-16 Name 2024-01-01 Name








20907 PC Leyland 1333 SS Wagstaff 333 SS Wagstaff 14 Anonymous
9492 N Daminelli 102 PC Leyland 59 yoyo@home PC Leyland
5159 SS Wagstaff 71 yoyo@home 18 PC Leyland SS Wagstaff
1548 R Hooft 44 R Hooft 14 Anonymous   
1493 Jo YU 24 O Kruse 14 A Latham   
808 M Rodenkirch 18 Anonymous P Manne & yoyo@home   
770 S Hoogendoorn 14 A Latham O Kruse   
664 M Vang 12 NFS@Home & S Wellman      
450 J Dilick S Wellman      
295 yoyo@home S Wellman & NFS@Home      
280 J Gilchrist P Manne & yoyo@home      
249 J Crump O Kruse & PC Leyland      
200 R Stanilewicz NFS@Home & O Kruse      
156 P Zimmermann M Vang      
148 T Womack & NFS@Home & R Hooft D Delgado & NFS@Home & S Wellman      
130 G Reynolds         
130 D Leclair         
100 G Childers & NFS@Home         
88 J Becker         
66 S Wellman & NFS@Home         
64 S Wellman & NFS@Home & R Hooft         
60 R Dickerson & NFS@Home & R Hooft         
56 R Recker         
48 SA Irvine         
44 V de Hollander & NFS@Home & R Hooft         
42 J Girsch         
38 T Womack & NFS@Home         
38 R Gevaryahu         
36 W Roonguthai         
36 T Charron         
36 J Leherbauer         
34 T Womack         
34 C Pinho         
34 B Meekins & NFS@Home & R Hooft         
26 R Dickerson         
26 P Underwood         
26 J Hansen         
24 S Wellman         
24 R Dickerson & NFS@Home         
24 O Kruse         
22 F Schickel         
22 Anonymous         
20 T Sorbera & NFS@Home & R Hooft         
20 C Pinho & NFS@Home & R Hooft         
16 RSALS & C Pinho         
14 S Batalov         
14 M Vang & NFS@Home & R Hooft         
14 L Debroux & NFS@Home & R Hooft         
14 A Latham         
12 W Gnadt         
12 R Verser         
12 P Jammes         
12 P Frakes         
12 NFS@Home & S Wellman         
12 L Debroux         
12 B Meekins & NFS@Home         
10 Y Lemsafer & NFS@Home & R Hooft         
10 U Heinemann         
10 NFS@Home & R Hooft         
10 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 Östlin         
NFS@Home         
L Morelli         
J Polzer         
C Pinho & NFS@Home         
BA Dodson         
RSALS & W Winslow         
RD Silverman & PC Leyland         
R Backstrom         
PC Leyland & NFS@Home & R Hooft         
P Strohl         
P Manne & yoyo@home         
O Kruse & PC Leyland         
NFSNET"         
NFSNET" & CWI         
NFS@Home & T Womack         
NFS@Home & O Kruse         
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