Low Weight

Started: August 20, 2004
Last update: October 1, 2004

Titan Primes found on this project:

      3817*2^218917-1 on Sep 2, 2004 Jocelyn Larouche
    12791*2^308026-1 on Sep 30, 2004 Jocelyn Larouche (LLR bug missed)

This project is to find large primes on low weight candidates, of the form k*2^n-1.

[x] working on it ... (x) Done to x by

ok means checked for LLRP4 bug

Reserved Available Riesel Number

Some ranges might already be done to 1M. Please send any info to Joss Larouche.

k Reserved n's/1000 left sieve 1M
(p, n's left)
sieve 10M
(p, n's left)
n's prime
253 Joss 3.938 830G, 35392 71, 1007, 27623 [Joss at 1M] ok
659 7.798 31G, 1555 800516 (800k rieselsieve)
2293 rieselsieve
3343 4.594 37G, 2992 483, 1299 (331k Joss) ok
3817 4.932 43G, 3007 40381, 161197, 218917 (252k Joss) ok
4813 5.018 49G, 4168 515, 11379, 13155 (169k Joss) ok
5077 6.038 48G, 5748 117, 333 (227k Joss) ok
6119 4.599 95G, 2721 4544 (360k Joss) ok
6883 2.46 32G, 1297 39 (467k Joss) ok
7331 5.217 65G, 4419 34, 87154 (153k Joss) ok
9179 3.617 7.5G, 2550 4120, 10408, 41680 (295k Joss) ok
9613 6.463 1.7G, 5765 1479, 34239 (108k Joss) ok
9787 3.787 15G, 1707 13, 589, 913, 2893, 47209 (506k Joss) ok
9913 3.695 18G, 2252 1187, 8387 (291k Joss) ok
10949 2.648 114G, 1374 1492, 1516 (481k Joss) ok
11411 Ingmar 4.9 50G, 2624 34, 106, 154, 1570, 12706 [Ingmar at 438k]
11519 5.22 12G, 4094 164444 (216k Joss) ok
12791 2.237 2818, 29398, 308026 (411k Joss) ok
14459 7.22 10G, 4947
17077 2.478 16G, 1891 677 (237k Joss) ok
19919 6.471 0.2G, 6471
20141 5.847 0.1G, 5847
20639 1.2G, 6232
21547 1.1G, 8286
21673 1.4G, 4048
22183 1M, 8526
23437 3.034 7G, 3034
23669 rieselsieve
24067 1M, 10004
24671 1M, 9458
25229 3.06 26G, 2070 238652 (Yves Gallot) (325k Joss)
26773 rieselsieve
27253 1M, 7425
27791 1M, 5717
30727 1M, 9416
31511 1M, 5971
32713 1M, 9562
38473 rieselsieve
43541
50227
53741 4738 (57k Joss)
57943 1M, 5132
65279
70079 Joss 2.437 42G, 2006 1428 [Joss at 176k]
74699 riseslsieve
81041 rieselsieve
93997 6.600 91G, 895 864401 (864k rieselsieve)
116531 Marcin 1M, 4503
117037
130139 58G, 1316 280296 (g127) (411k Joss)
132217
132851 1M, 4782
138847 0.767 8.5G, 6575 33, 1283793 (1.4M Jean Penné)
143047 Jiong Sun
148901
150847 1076441 (1M rieselsieve)
161669 rieselsieve
170591 4.905 2.7G, 653 866870 (866k rieselsieve)
171607 1.648 58G, 915 21117, 73245 (410k Joss) ok
179743 50M, 3473
192089 1395688 (1.39M rieselsieve)
192509 1M, 4296
216367 1M, 4067
220033 10.140 200M, 2842 719731 (719k rieselsieve)
236377 1M, 7031
239857 1M, 8134
245561 50G, 893 (309k Joss) ok
246299 10.707 200M, 2649 752600 (752k rieselsieve)
248047 1M, 4423
249127 1M, 7067
261221 6.829 200M, 2121 689422 (689k rieselsieve)
275591 1.767 18G, 1350 5354 (232k Joss) ok
278077 1M, 4311

278713

1M, 3399
279703 9.766 100M, 3748 616235 (616k rieselsieve)
304207 10M, 2511
309817 6.819 200M, 612 901173 (901k rieselsieve)
323563 10M, 5173
327163 10M, 3206
342337 1.394 21G, 923 1657 (337k Joss) ok
342847 rieselsieve
370421 10M, 4240
441907 10M, 5549
444637 Thomas none [Thomas at 2.3M]
451049 10M, 6423
460139 8.822 100M, 1944 779536 (779k rieselsieve)
464909 10M, 7035
465187 10M, 6444
469949 10M, 3518
485557 10M, 3432
487811 10M, 3350
491891 2.5G, 1377 5830 (251k Joss) ok
492787 10M, 7115
509203
516569 1.376 60G, 752 20 (448k Joss) ok
612509
671413 10M, 2965
762701
777149
784109 1.42 39G, 990 99884 (298k Joss) ok
790841
808477 10M, 4511
844559 10M, 5019
850931 1.52

13G, 1355

8966 (100k Joss) ok
866219 10M, 5272
963643 1.084 161G, 737 none (335k Joss) ok
981493 1.420 500M, 1420
992077
1002401 10M, 4745
1005449 10M, 4761
1005671 100M, 3851
1006469 10M, 3148
1011371 100M, 5324
1106681
1208953 1.161

219G, 912

4007 (200k Joss) ok
1230877 10M, 5763
1234949 10M, 3905
1247173
1254341
1330207
1330319
1423139 9.5G, 1377 16980
1926521 39G, 1006
2232007 1490605 (L4)
2308121 0.631 75G, 287 (545k Joss)
4278899 0.675 48G, 324 13720 (520k Joss)
10013593 1.004 200G, 459 3847 (250k James?) (470k Ingmar?)
10247561 1.177 1G, 881 730 (250k James?)
10284899 0.890 1G, 676 868, 2596 (250k James?)
10346561 1.497 1G, 910 32714 (400k James?)
10453199 0.513 198G, 302 none (250k James?)
10463923 0.951 1G, 734 none (250k James?)
10598947 1.328 1G, 797 3024 (400k James?)
10639619 1.152 1G, 864 24 (250k James?)
10671431 1.054 1G, 791 none (250k James?)
10805593 1.505 1G, 1129 133547 (250k James?)
10813783 0.96 1G, 720 none (250k James?)
10906603 1.204 1G, 903 2471 (250k James?)
10932097 1M, 2015 35045 (420k James?)
10943321 1M, 2666 (James ?)
11223059 0.618
11311003 1M, 1429
11319193 1M, 2025
11468609 1M, 2025
11639819 1M, 1835
11658187 1M, 2297
11716993 1M, 2168
11741347 1M, 1945
11846279 1M, 2230
11847299 1M, 2209
11932211 1M, 1753
11955659 1M, 1878
12254533 1M, 1820
12305981 1M, 1871
12334093 1M, 2377
12551291 1M, 2073
12695159 0.691
12753311 1M, 1908
12825793 1M, 2426
13277471 1M, 2518
13651423 1M, 2157
13768087 1M, 2231
13900807 0.552
14085941 1M, 1791
14321533 0.440
14466883 1M, 1874
14533213 1M, 2135
14549347 1M, 2365
14745343 1M, 1639
14961487 0.793
19370947 Thomas 25
59910449 Thomas 92
80857169 Thomas 4
143316643 Thomas
162405629 Thomas 896, 12236
175437131 Thomas
189030223 Thomas
203012861 Thomas 754
209826493 Thomas
224371169 Thomas 3548
243163663 Thomas 919087
245265883 Thomas
260213857 Thomas
265831619 Thomas
276278983 Thomas 21623, 473423
290851087 Thomas 57
298095191 Thomas
300871183 Thomas
308120317 Thomas
308141737 Thomas 7517
315940139 Thomas 8388, 595620
326840893 Thomas 31