1

2

1

_

----

Ancient Greek mathematicians

2

3

1

5

----

Ancient Greek mathematicians

3

5

2

3

----

Ancient Greek mathematicians

4

7

3

5

----

Ancient Greek mathematicians

5

13

4

11

1456

anonymous

6

17

6

19

1588

Pietro Cataldi

7

19

6

17

1588

Pietro Cataldi

8

31

10

29

1772

Leonhard Euler

9

61

19

59

1883

Ivan Mikheevich Pervushin

10

89

27

1911

R E Powers

11

107

33

109

1914

R E Powers note

12

127

39

1876

Edouard Lucas

13

521

157

523

1952

Raphael M Robinson

14

607

183

1952

Raphael M Robinson

15

1279

386

1277

1952

Raphael M Robinson

16

2203

664

1952

Raphael M Robinson

17

2281

687

1952

Raphael M Robinson

18

3217

969

1957

Hans Riesel

19

4253

1281

1961

Alexander Hurwitz

20

4423

1332

4421

1961

Alexander Hurwitz

21

9689

2917

1963

Donald B Gillies

22

9941

2993

1963

Donald B Gillies

23

11213

3376

1963

Donald B Gillies

24

19937

6002

1971

Bryant Tuckerman [Tuckerman71]

25

21701

6533

1978

Landon Kurt Noll & Laura Nickel [NN80]

26

23209

6987

1979

Landon Kurt Noll

27

44497

13395

1979

Harry Lewis Nelson & David Slowinski [Slowinski79]

28

86243

25962

1982

David Slowinski [Ewing83]

29

110503

33265

110501

1988

Walter Colquitt & Luke Welsh [CW91]

30

132049

39751

132047

1983

David Slowinski

31

216091

65050

1985

David Slowinski

32

756839

227832

1992

David Slowinski & Paul Gage et al.

33

859433

258716

1994

David Slowinski & Paul Gage et al.

34

1257787

378632

1996

David Slowinski & Paul Gage et al.

35

1398269

420921

1996

Joel Armengaud, George Woltman (GIMPS),

et al.

36

2976221

895932

1997

Gordon Spence, George Woltman (GIMPS),

et al.

37

3021377

909526

1998

Roland Clarkson, George Woltman (GIMPS), Kurowski (PrimeNet)

et al.

38

6972593

2098960

1999

Hajratwala, George Woltman (GIMPS), Kurowski (PrimeNet)

39

13466917

4053946

2001

Michael Cameron, George Woltman (GIMPS), Kurowski (PrimeNet)

40

20996011

6320430

20996009

2003

Michael Shafer, George Woltman (GIMPS), Kurowski (PrimeNet)

41

24036583

7235733

24036581

2004

Josh Findley, George Woltman (GIMPS), Kurowski (PrimeNet)

42

25964951

7816230

2005

Nowak, George Woltman (GIMPS), Kurowski (PrimeNet)

43

30402457

9152052

2005

Curtis Cooper, Steven Boone, George Woltman (GIMPS), Kurowski (PrimeNet)

44

32582657

9808358

2006

Curtis Cooper, Steven Boone, George Woltman (GIMPS), Kurowski (PrimeNet)

45

37156667

11185272

2008

Hans-Michael Elvenich, George Woltman (GIMPS), Kurowski (PrimeNet)

46

42643801

12837064

2009

Odd M Strindmo, George Woltman (GIMPS), Kurowski (PrimeNet)

47

43112609

12978189

2008

Edson Smith, George Woltman (GIMPS), Kurowski (PrimeNet)

48

57885161

17425170

2013

Curtis Cooper, George Woltman (GIMPS), Kurowski (PrimeNet)

49?

74207281

22338618

74207279

2016

Curtis Cooper, George Woltman (GIMPS), Kurowski & Blosser (PrimeNet)

50?

77232917

23249425

2017

Jon Pace, George Woltman (GIMPS), Kurowski & Blosser (PrimeNet)

51?

82589933

24862048

2018

Patrick Laroche, George Woltman (GIMPS), Blosser (PrimeNet)