FactoProths  and  PrimoProths records


 


FactoProths
Digits (p1)
Who?
When?
comment
1
13!*2^153294+1 46156 Didier Boivin 09/2002  
2 16!*2^146548+1 44129 Dirk Augustin 04/2002  
3 16!*2^116653+1 35130 Dirk Augustin 03/2002  
4 2011!*2^23155+1 12743 Dirk Augustin 05/2001  
5 1968!*2^20702+1 11862 Didier Boivin 04/2001  
6 1968!*2^20189+1 11708 Didier Boivin 04/2001  
7
1962!*2^18712+1
11244

Paul Underwood

04/1999

 
8 800!*2^6079+1 3807 Didier Boivin 10/2000  
9 800!*2^5997+1 3783 Didier Boivin 10/2000  
10 600!*2^4859+1 2871 Didier Boivin 10/2000  
 
1
1715!*2^9070+/-1 7535 Dirk Augustin 08/2016 Twin
2 1691!*2^8574+1, 1691!*2^8575+1 7308 Dirk Augustin 08/2016 Cunn.2 L=2
3 1460!*2^5696+/-1 5703 Dirk Augustin 08/2016 Twin
4 1603!*2^1857+/-1 5003 Dirk Augustin 08/2016 Twin
5 1292!*2^4229-1, 1292!*2^4230-1 4734 Dirk Augustin 08/2016 Sophie Germain
6 1011!*2^604+1, 1011!*2^605+1 2783 Donovan Johnson 07/2005 Cunn.2 L=2
7 1017!*2^288+1, 1017!*2^289+1 2706 Donovan Johnson 07/2005 Cunn.2 L=2
8 86!*2^7864-1, 86!*2^7865-1 2498 Donovan Johnson 07/2005 Sophie Germain
9 943!*2^48+1, 943!*2^49+1 2412 Dirk Augustin 03/2002 Cunn.2 L=2
10 23!*2^6868+/-1 2090 Donovan Johnson 07/2005 Twin
11 625!*2^770+/-1 1710 Donovan Johnson 07/2005 Twin
12 108!*2^5052+1, 108!*2^5053+1 1695 Donovan Johnson 07/2005 Cunn.2 L=2
13 444!*2^1948-1, 444!*2^1949-1 1571 Donovan Johnson 07/2005 Sophie Germain
14 577!*2^494+/-1 1494 Donovan Johnson 07/2005 Twin
15 484!*2^1182-1, 484!*2^1183-1 1447 Donovan Johnson 07/2005 Sophie Germain
16 398!*2^1762-1, 398!*2^1763-1 1395 Donovan Johnson 07/2005 Sophie Germain
17 536!*2^489 +/-1 1380 Donovan Johnson 07/2005 Twin
18 558!*2^251+1, 558!*2^252+1 1368 Donovan Johnson 07/2005 Cunn.2 L=2
19 351!*2^1858+1, 351!*2^1859+1 1302 Donovan Johnson 07/2005 Cunn.2 L=2
20 478!*2^621-1 , 478!*2^622-1 1262 Donovan Johnson 07/2005 Sophie Germain
21 510!*2^281+1, 510!*2^282+1 1246 Donovan Johnson 07/2005 Cunn.2 L=2
22 370!*2^1382+1, 370!*2^1383+1 1208 Donovan Johnson 07/2005 Cunn.2 L=2
23 300!*2^1909-1, 300!*2^1910-1 1190 Donovan Johnson 07/2005 Sophie Germain
24 319!*2^1720-1, 319!*2^1721-1 1180 Donovan Johnson 07/2005 Sophie Germain
25 377!*2^1219+1, 377!*2^1220+1 1177 Donovan Johnson 07/2005 Cunn.2 L=2
26 332!*2^1596+/-1 1175 Donovan Johnson 07/2005 Twin
27 428!*2^714-1, 428!*2^715-1 1158 Donovan Johnson 07/2005 Sophie Germain
28 346!*2^1200 +/-1 1092 Donovan Johnson 07/2005 Twin
29 422!*2^460 +/-1 1065 Donovan Johnson 07/2005 Twin
30 61!*2^3254 +/- 1 1064 Dirk Augustin 03/2002 Twin
31 415!*2^497+1, 415!*2^498+1 1058 Donovan Johnson 07/2005 Cunn.2 L=2
32 362!*2^848-1, 362!*2^849-1 1026 Donovan Johnson 07/2005 Sophie Germain
33 378!*2^5+1, 378!*2^6+1 814 Dirk Augustin 03/2002 Cunn.2 L=2
34 361!*2^88+/- 1 795 Dirk Augustin 03/2002 Twin
35 70!*2^1751+/- 1 628 Dirk Augustin 03/2002 Twin
36
 45!*2^1768+/-1
589
02/1999
Twin
37 187!*2^536+1, 187!*2^537+1 507 Dirk Augustin 03/2002 Cunn.2 L=2
38

67!*2^486+/-1

242

Henri Lifchitz 

02/1999

Twin

39
71!*2^445+1, 71!*2^446+1

237

Henri Lifchitz 

02/1999

Cunn. 2 L=2

40
8!*2^760+/-1

234

Henri Lifchitz 

02/1999

Twin

41
48!*2^547+/-1
226
02/1999
Twin
 
1 89!*2^92-1, 89!*2^93-1, 89!*2^94-1 164 Dirk Augustin 03/2002 Cunn.1 L=3
2
68!*2^30-1, 68!*2^31-1, 68!*2^32-1 106
Dirk Augustin 08/2016
Cunn.1 L=3

 

 


PrimoProths

Digits
Who?
When?
comment
1
23#*2^109725-1
33039
03/2002
 
2
373#*2^100186+1
30310
05/2002
 
3
373#*2^96453+1
29186
05/2002
 
4
373#*2^95126+1
28787
05/2002
 
5
373#*2^93476+1
28290
05/2002
 
6
373#*2^93242+1
28220
05/2002
 
7
23#*2^90093+1
27130
Goran Axelsson
2002

8
373#*2^88129+1
26681
05/2002
 
9
28513#*2^45945+1
26109
12/1999
 
10
373#*2^86127+1
26078
05/2002
 
11
23#*2^86463-1
26037
03/2002

12
23#*2^84796-1
25535
03/2002
 
13
23#*2^77525-1
23346
02/2002

14
373#*2^72203+1
21886
05/2002
 
15
23#*2^71400-1
21502
02/2002

16
373#*2^68728+1
20840
05/2002
 
17
373#*2^67982+1
20616
05/2002
 
18
373#*2^65833+1
19969
05/2002
 
19
373#*2^62471+1
18957
05/2002
 
20
23#*2^60273-1
18153
02/2002

21
23#*2^58839-1
17721
02/2002

22
373#*2^57413+1
17434
05/2002
 
23
373#*2^55156+1
16755
05/2002
 
24
373#*2^52136+1
15846
05/2002
 
25
23#*2^51806+1
15604
Jim Buddenhagen
1997
 
26
23#*2^50808-1
15304
02/2002

27
373#*2^49787+1
15139
05/2002
 
28
373#*2^47843+1
14553
05/2002
 
29
373#*2^47153+1
14346
05/2002
 
30
23#*2^47499-1
14307
Giovanni la Barbera
1999

31
373#*2^45948+1
13983
05/2002
 
32
373#*2^45789+1
13935
05/2002
 
33
373#*2^45371+1
13809
05/2002
 
34
23#*2^43847-1
13208
02/2002

35
373#*2^42360+1
12903
05/2002
 
36
373#*2^42298+1
12884
05/2002
 
37
373#*2^41257+1
12571
05/2002
 
38
23#*2^41200-1
12411
02/2002

39
23#*2^40385-1
12166
02/2002

40
23#*2^39485-1
11895
02/2002

41
17#*2^39346+1
11851
02/2002

42
23#*2^37938-1
11429
02/2002

43

12577#*2^18501+1

10974

Henri Lifchitz

02/1999

 
44
23#*2^36082-1
10871
02/2002
 
45
23#*2^34813-1
10489
02/2002
 
46
17#*2^34786-1
10478
03/2002
 
47
11#*2^34712+1
10453
03/2002
 
48
19#*2^33763-1
10171
03/2002
 
49
19#*2^33743-1
10165
03/2002
 
50
23#*2^33725+1
10161
02/2002
 
51
23#*2^33303-1
10034
02/2002
 
52
17#*2^30793+1
9276
02/2002

53
17#*2^30661+1
9236
02/2002

54

10159#*2^15243+1

8959

Henri Lifchitz

02/1999

 
55
17#*2^29005+1
8738
02/2002

56

8171#*2^16352+1

8418

Henri Lifchitz

02/1999

 
57

9743#*213989+1

8402

Henri Lifchitz

02/1999

 
58
23#*2^27734+1
8358
02/2002
 
59

8059#*2^16120+1

8297

Henri Lifchitz

01/1999

 
60
23#*2^27200-1
8197
02/2002
 
61
23#*2^26774+1
8069
02/2002
 
62

8500#*2^14709+1

8052

Paul Jobling

04/1999


63
17#*2^26587+1
8010
02/2002

64

7669#*2^15340+1

7902

Henri Lifchitz

02/1999

 
65
23#*2^26207-1
7898
02/2002
 
           
 
3*5209#*2^31419+1
11681

Henri Lifchitz 

03/1999

near primoproth

1
11239#*2^14401 +/-1 9153
Didier Boivin 03/2012
Twin
2
11197#*2^10182 +/-1 7875 Donovan Johnson 07/2005 Twin
3
6553#*2^16727+1, 6553#*2^16728+1 7838 Donovan Johnson 07/2005 Cunn. 2 L=2
4
12097#*2^7819 +/-1 7533 Donovan Johnson 07/2005 Twin
5
13#*2^23869+1, 13#*2^23870+1
7190 Jeffrey Young 1993 Cunn. 2 L=2
6
8753#*2^7802-1, 8753#*2^7803-1 6103 Donovan Johnson 07/2005 Sophie Germain
7
10513#*2^4947+1, 10513#*2^4948+1 6016 Donovan Johnson 07/2005 Cunn. 2 L=2
8
4789#*2^12298-1, 4789#*2^12299-1
5743 Dirk Augustin 03/2004 Sophie Germain
9
4049#*2^11483 +/-1 5185 Dirk Augustin 03/2004 Twin
10
59#*2^13965+1, 59#*2^13966+1
4226 Torbjörn Alm 06/2002 Cunn. 2 L=2
11 443#*2^10285 +/-1 3279 ? ? Twin
12 3271#*2^6091 +/1 3219 Donovan Johnson 07/2005 Twin
13 3011#*2^6092+1, 3011#*2^6093+1 3115 Donovan Johnson 07/2005 Cunn. 2 L=2
14 3181#*2^3755 +/-1 2474 Donovan Johnson 07/2005 Twin
15 631#*2^6964-1, 631#*2^6965-1 2358 Dirk Augustin
04/2002
Sophie Germain
16
431#*2^7045-1, 431#*2^7046-1 2295 Dirk Augustin
04/2002
Sophie Germain
17
3083#*2^2839-1 , 3083#*2^2840-1 2167 Donovan Johnson 07/2005 Sophie Germain
18
431#*2^6337 +/-1 2082 Dirk Augustin
05/2002
Twin
19
457#*2^6106-1, 457#*2^6106-1 2026 Dirk Augustin
04/2002
Sophie Germain
20
3347#*2^1904+1, 3347#*2^1905+1 1994 Donovan Johnson 07/2005 Cunn. 2 L=2
21 3229#*2^2039+1, 3229#*2^2040+1 1982 Donovan Johnson 07/2005 Cunn. 2 L=2
22 1289#*2^4700 +/-1 1956 Didier Boivin 05/2002 Twin
23 3061#*2^1254+1, 3061#*2^1255+1 1679 Donovan Johnson 07/2005 Cunn. 2 L=2
24 1697#*2^3113 +/-1 1656 Didier Boivin 05/2002 Twin
25
1327#*2^3420 +/-1 1596 Didier Boivin 05/2002 Twin
26 3319#*2^588 +/-1 1581 Donovan Johnson 07/2005 Twin
27
1129#*2^3575 +/-1 1556 Didier Boivin 05/2002 Twin
28
199#*2^4819+1, 199#*2^4820+1
1533
03/2002
Cunn. 2 L=2
29
223#*2^4582 +/-1
1466
05/2002 Twin
30
311#*2^4303-1, 311#*2^4304-1
1421
03/2002
Sophie Germain
31
163#*2^4346-1, 163#*2^4347-1
1373
03/2002
Sophie Germain
32 947#*2^3246 +/-1
1372 Didier Boivin 05/2002 Twin
33
193#*2^3898-1, 193#*2^3899-1
1251
03/2002
Sophie Germain
34 727#*2^3011 +/-1
1208 Didier Boivin 05/2002 Twin
35 1097#*2^2317 +/-1
1162 Didier Boivin 05/2002 Twin
36 1493#*2^1758 +/-1
1162 Didier Boivin 05/2002 Twin
37 1321#*2^1902 +/-1
1135 Didier Boivin 05/2002 Twin
38 349#*2^3026 +/-1
1052 Marcin Lipinski 05/2002 Twin
39 1433#*2^1402 +/-1
1020 Didier Boivin 05/2002 Twin
40
857#*2^2112 +/-1
992 Didier Boivin 05/2002 Twin
41 617#*2^2424 +/-1
986 Didier Boivin 05/2002 Twin
42 587#*2^2324 +/-1
939 Didier Boivin 05/2002 Twin
43 1031#*2^1569 +/-1
903 Didier Boivin 05/2002 Twin
44 541#*2^2265 +/-1
902 Didier Boivin 05/2002 Twin
45 1361#*2^1023 +/-1
877 Didier Boivin 05/2002 Twin
46 1187#*2^1236 +/-1
870 Didier Boivin 05/2002 Twin
47 1049#*2^1197 +/-1
800 Didier Boivin 05/2002 Twin
48
307#*2^2216+1, 307#*2^2217+1
790
03/2002
Cunn. 2 L=2
49 467#*2^1941 +/-1
780 Didier Boivin 05/2002 Twin
50
373#*2^1773+1, 373#*2^1774+1
685
05/2002
Cunn. 2 L=2
51
103#*2^2102+1, 103#*2^2103+1
674
03/2002
Cunn. 2 L=2
52 1193#*2^526 +/-1
659 Didier Boivin 05/2002 Twin
53 631#*2^1191 +/-1
620 Henri Lifchitz 01/1999 Twin
54 1033#*2^587 +/-1
611 Didier Boivin 05/2002 Twin
55
269#*2^1550+1, 269#*2^1551+1
575
03/2002
Cunn. 2 L=2
56
83#*2^1784-1, 83#*2^1785-1
570
02/2002
Sophie Germain
57

431#*2^1306+1, 431#*2^1307+1

568

Henri Lifchitz

01/1999

Cunn. 2 L=2

58 1229#*2^69 +/-1
537 Didier Boivin 05/2002 Twin
59
401#*2^1223+1, 401#*2^1224+1
532
05/2002
Cunn. 2 L=2
60
839#*2^567 +/-1
521 Didier Boivin 05/2002 Twin
61
107#*2^1544+1, 107#*2^1545+1
508
03/2002
Cunn. 2 L=2
62

271#*2^1311-1, 271#*2^1312-1

506

Henri Lifchitz

01/1999

Sophie Germain
63

569#*2^843-1, 569#*2^844-1

485

Henri Lifchitz

01/1999

Sophie Germain
64 1069#*2^102 +/-1
483 Didier Boivin 05/2002 Twin
65
277#*2^1195+1, 277#*2^1196+1
473
03/2002
Cunn. 2 L=2
66

97#*2^1402+1, 97#*2^1403+1

460

Henri Lifchitz

01/1999

Cunn. 2 L=2

67

347#*2^1066 +/-1

459

Henri Lifchitz

01/1999

Twin

68 419#*2^804 +/-1
411 Henri Lifchitz 01/1999 Twin
69

197#*2^930-1, 197#*2^931-1

361

Henri Lifchitz

01/1999

Sophie Germain
70
37#*2^582-1, 37#*2^583-1
189
02/2002
Sophie Germain
 
1 383#*2^102-1
383#*2^103-1
383#*2^104-1
187 Donovan Johnson 07/2005 Cunn. 1 L=3
2
167#*2^356-1
167#*2^357-1
167#*2^358-1
174
03/2002
Cunn. 1 L=3
 
1
227#*2^29-1
227#*2^30-1
227#*2^31-1
227#*2^32-1
98
03/2002
Cunn. 1 L=4
2 71#*2^189-1
71#*2^189+1
71#*2^190-1
71#*2^190+1
84 Henri Lifchitz 01/1999 BiTwin
3 137#*2^76-1
137#*2^76+1
137#*2^77-1
137#*2^77+1
76 Didier Boivin 05/2002 BiTwin
 

 
  


Created by  Henri Lifchitz : April, 21 1999, last modification: September, 1  2016.