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  Currently there are seventy-six contributors involved in the project (the author isn't taken into account):
 
When joined
Name
Factors
Complete
factorizations
Records
Info
February 26, 2002
Greg Childers
1817
830
2
-
December 28, 2001
Paul Leyland
963
447
-
Home Page
January 27, 2009
yoyo@home
554
313
9
Home Page
April 18, 2005
Larry Soule
434
259
-
-
February 26, 2002
Sean A. Irvine
381
355
3
-
November 30, 2012
NFS@home
334
304
45
Home Page
August 2, 2003
Robert Backstrom
229
217
-
-
February 27, 2002
Richard Heylen
166
108
4
-
February 27, 2002
Torbjörn Alm
157
146
-
-
January 6, 2005
Tom Cage
120
120
5
-
May 3, 2014
Ryan Propper
120
113
17
-
August 24, 2011
Sean Wellman
116
103
5
-
April 1, 2003
Jonathan A. Zylstra
98
95
1
-
May 14, 2009
Bill Rea
76
72
-
-
March 18, 2005
Hallstein A. Hansen
76
64
2
-
February 26, 2002
Sander Hoogendoorn
75
72
-
-
September 13, 2009
RSALS project
62
58
-
Home Page
February 26, 2002
Don Leclair
61
56
4
-
March 7, 2004
Steve Anderegg
60
59
-
Home Page
February 27, 2002
Andreas Enge
55
32
-
-
May 13, 2008
Serge Batalov
46
39
-
-
April 25, 2002
Ken Worster
45
45
2
-
May 8, 2005
Lars Dausch
44
38
-
-
February 26, 2002
Robert Harley
43
22
-
-
December 22, 2008
Jeff Gilchrist
41
41
-
Home Page
February 26, 2002
Joe Leherbauer
39
37
-
-
June 23, 2003
Pavlos Saridis
38
32
-
-
March 4, 2002
Philippe Strohl
32
29
-
-
December 16, 2012
David Metcalfe
31
27
-
-
May 17, 2003
Jay Berg
30
26
-
Home Page
February 26, 2002
Pierrick Gaudry
30
26
-
-
September 14, 2009
Tom Womack
29
29
4
-
April 5, 2002
Nicolas Daminelli
28
24
7
-
January 21, 2005
Samuel Chong
26
24
-
-
August 8, 2003
Eric Brier & Christophe Clavier
18
17
-
-
April 13, 2003
Hartmut Bock
16
13
6
-
May 10, 2002
William S. Irvine
16
8
-
-
October 12, 2009
Lionel Debroux
16
5
-
-
December 14, 2007
forzles
14
14
-
-
January 6, 2005
John Dilick
12
11
-
-
February 26, 2002
Paul Zimmermann
12
5
-
-
March 21, 2003
Martin Schröder
11
8
-
Home Page
January 30, 2010
Randy Wilson
9
3
-
-
May 16, 2005
Patrick Keller
7
7
-
-
November 5, 2007
Lars Solem
6
5
-
-
April 7, 2002
Alexander Kruppa
5
5
-
-
August 9, 2013
Oscar Östlin
5
3
4
-
June 22, 2009
Dmitry Domanov
5
3
-
-
October 29, 2014
Ben Meekins
4
4
-
-
August 14, 2007
James Wanless
4
4
-
-
February 1, 2005
Jes Hansen
4
4
-
-
February 26, 2002
Marcin Lipiñski
4
4
-
-
December 15, 2008
Benjamin Buhrow
4
3
-
Home Page
December 29, 2007
Enrico Ebert
3
3
-
-
November 29, 2005
Bernardo Boncompagni
3
3
-
Home Page
e-mail
May 19, 2005
Chris Card
3
3
-
-
September 5, 2006
Tony Galvan
2
2
-
-
June 16, 2005
Tom Sabbe
2
2
-
-
January 13, 2003
Stuart Woodcock
2
2
-
Home Page
January 17, 2015
Antonio Key
2
1
-
-
March 23, 2009
Henrik Nilsson
2
1
-
Home Page
September 5, 2005
OddPerfect.org
2
-
-
Home Page
March 13, 2015
Youcef Lemsafer
1
1
-
-
February 11, 2015
Chris Kendon
1
1
-
-
May 11, 2014
unknown
1
1
-
-
April 24, 2008
nyna
1
1
-
-
July 11, 2005
Cédric Vonck
1
1
-
-
May 27, 2005
Dennis Klemann
1
1
-
-
January 8, 2005
William Lipp
1
1
-
Home Page
November 23, 2004
Japke Rosink
1
1
-
-
April 20, 2003
Andreas Pipp
1
1
-
-
November 8, 2002
Lloyd J. Kilford
1
1
-
-
February 26, 2002
Fred W. Helenius
1
1
-
-
April 19, 2007
Pierre Jammes
1
-
-
-
March 22, 2005
Przemyslaw Zalewski
1
-
-
-
Total:
75
6622
4380
118
Results

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Andrey Kulsha, Belarus