ECM Distributed Factorization Dashboard

ECM Testing Status P-1/P+1 Status All Curves All Factors Leaderboard Residue Status
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Priority:
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Currently showing: Priority 4 composites
254
Total Composites
1042
Total Attempts
39003
Factors Found
29
Fully Factored
Recent Factorization Attempts (Aggregated by Composite) View All Curves →

Click any row to expand and see individual curve batches

Composite Digits T-Level Progress Batches Total Curves Factors Found First/Last Attempt Total Time
▶ (33023^61-1)/(33023-1) 272
t56.2/t58.5
28 108,801 None 2025-12-28 08:04
2026-05-13 15:21 		36406.2s
▶ (1877^83-1)/(1877-1) 251
t58.6/t58.5
44 157,751 None 2025-12-28 10:30
2026-05-13 04:55 		76179.4s
▶ (3067^79-1)/(3067-1) 255
t57.7/t57.5
42 132,100 None 2025-12-28 08:26
2026-05-06 15:54 		66506.8s
▶ (21347^61-1)/(21347-1) 260
t57.7/t57.5
38 129,028 None 2025-12-28 05:23
2026-05-06 15:20 		56236.4s
▶ (11519^67-1)/(11519-1) 260
t58.3/t58.2
33 142,849 None 2025-12-28 09:10
2026-05-04 14:18 		73540.0s
▶ aliquot:564:i3549 198
t61.0/t60.9
96 251,908 None 2026-04-15 04:51
2026-05-03 17:29 		114091.1s
▶ (1601^127-1)/(1601-1) 383
t43.7/t82.2
4 10,240 None 2026-01-10 02:54
2026-05-03 12:31 		4528.9s
▶ (307747777673827^17-1)/(307747... 230
t57.5/t57.2
31 72,324 None 2025-12-21 21:46
2026-05-03 01:35 		24181.9s
▶ aliquot:966:i1117 188
t57.9/t57.8
35 177,412 None 2026-04-28 23:43
2026-05-02 02:56 		44587.2s
▶ (26764103852479605977859789033... 580
t43.9/t85.0
9 14,716 1 factor 2026-02-02 13:39
2026-04-30 22:32 		4797.8s
▶ (1204507^67-1)/(1204507-1) 376
t43.7/t85.0
4 10,240 None 2026-01-10 00:55
2026-04-30 21:12 		1731.4s
▶ (7411^101-1)/(7411-1) 387
t43.7/t82.2
4 10,240 None 2026-01-10 03:50
2026-04-30 20:46 		4878.3s
▶ (13537^97-1)/(13537-1) 384
t43.7/t81.2
4 10,240 None 2026-01-10 03:18
2026-04-30 15:32 		4917.6s
▶ (1223^127-1)/(1223-1) 378
t43.7/t79.7
4 10,240 None 2026-01-10 02:30
2026-04-30 15:04 		4514.6s
▶ (8573^97-1)/(8573-1) 378
t43.7/t78.8
4 10,240 None 2026-01-10 01:43
2026-04-30 14:54 		4860.6s
▶ (8609^97-1)/(8609-1) 378
t43.7/t78.8
4 10,240 None 2026-01-10 02:06
2026-04-30 14:19 		2095.9s
▶ (853^101-1)/(853-1) 266
t48.4/t63.1
7 27,649 None 2025-12-30 01:43
2026-04-23 15:27 		10897.2s
▶ (2417^79-1)/(2417-1) 257
t56.7/t56.6
56 125,444 None 2025-12-28 06:36
2026-04-20 07:39 		99535.8s
▶ (44371^61-1)/(44371-1) 253
t49.8/t60.3
9 38,401 None 2025-12-28 12:05
2026-04-16 10:17 		21104.4s
▶ (10711^73-1)/(10711-1) 273
t49.9/t60.6
9 38,401 None 2025-12-30 13:23
2026-04-16 09:13 		5928.9s
▶ (1367^89-1)/(1367-1) 256
t49.9/t60.6
9 38,401 None 2025-12-28 09:03
2026-04-16 08:32 		4370.3s
▶ (2377^83-1)/(2377-1) 260
t49.9/t60.3
9 38,401 None 2025-12-28 13:33
2026-04-16 07:13 		6177.1s
▶ (70991^61-1)/(70991-1) 292
t49.8/t62.8
9 38,401 None 2025-12-30 05:09
2026-04-16 01:02 		26582.1s
▶ (811^103-1)/(811-1) 293
t48.4/t62.8
7 27,649 None 2025-12-30 11:32
2026-04-14 15:04 		7226.9s
▶ (179^331-1)/(179-1) 744
t44.2/t85.0
12 13,416 None 2026-02-10 11:35
2026-04-07 13:10 		12614.7s
▶ (31^613-1)/(31-1) 870
t44.2/t85.0
13 15,080 None 2026-02-10 13:18
2026-04-07 11:47 		15793.2s
▶ (53^421-1)/(53-1) 725
t44.3/t85.0
4 5,888 None 2026-02-05 23:30
2026-04-07 06:46 		9139.6s
▶ (14845204255764341964559422386... 723
t44.3/t85.0
4 5,888 None 2026-02-05 22:33
2026-04-07 05:51 		10479.3s
▶ (661^257-1)/(661-1) 722
t44.3/t85.0
4 5,888 None 2026-02-05 21:08
2026-04-07 04:55 		14737.5s
▶ (769^251-1)/(769-1) 722
t44.3/t85.0
4 5,888 None 2026-02-05 22:04
2026-04-07 03:59 		8373.6s
▶ (941^241-1)/(941-1) 714
t44.3/t85.0
4 5,888 None 2026-02-05 17:21
2026-04-06 18:24 		80465.7s
▶ (113^349-1)/(113-1) 705
t44.3/t85.0
4 5,888 None 2026-02-05 10:41
2026-04-03 00:02 		22566.4s
▶ (1163^229-1)/(1163-1) 699
t44.3/t85.0
4 5,888 None 2026-02-05 06:54
2026-04-01 14:58 		8305.7s
▶ (1181^227-1)/(1181-1) 695
t44.3/t85.0
4 5,888 None 2026-02-05 03:36
2026-04-01 11:17 		14016.9s
▶ (1321^223-1)/(1321-1) 693
t44.3/t85.0
4 5,888 None 2026-02-05 01:42
2026-04-01 01:42 		10574.3s
▶ (163^317-1)/(163-1) 691
t44.3/t85.0
4 5,888 None 2026-02-05 01:14
2026-04-01 00:36 		15124.5s
▶ (31^463-1)/(31-1) 658
t44.1/t85.0
5 8,576 None 2026-02-04 01:26
2026-03-31 21:02 		12351.9s
▶ (1097^97-1)/(1097-1) 257
t48.5/t62.5
7 27,649 None 2025-12-30 04:25
2026-03-31 16:53 		12213.3s
▶ (1669^211-1)/(1669-1) 677
t44.3/t85.0
4 5,888 None 2026-02-04 16:36
2026-03-31 01:57 		13277.8s
▶ (292561^179-1)/(292561-1) 928
t43.9/t85.0
13 15,080 None 2026-02-10 14:02
2026-03-29 20:07 		8382.3s
▶ (8647^109-1)/(8647-1) 412
t43.8/t85.0
3 7,168 None 2026-01-14 00:18
2026-03-29 13:11 		3588.9s
▶ (6521^107-1)/(6521-1) 405
t43.8/t85.0
3 7,168 None 2026-01-13 22:09
2026-03-29 12:01 		3473.3s
▶ (4079^113-1)/(4079-1) 396
t43.8/t82.5
3 7,168 None 2026-01-13 12:39
2026-03-29 08:44 		3431.2s
▶ (17^863-1)/(17-1) 1061
t43.9/t85.0
12 14,824 None 2026-02-10 15:24
2026-03-28 23:15 		24608.1s
▶ (521^271-1)/(521-1) 734
t43.9/t85.0
13 15,080 None 2026-02-10 11:08
2026-03-28 20:16 		17261.6s
▶ (5^1193-1)/(5-1) 824
t43.9/t85.0
11 13,160 None 2026-02-10 12:33
2026-03-28 16:19 		11924.3s
▶ (1471^163-1)/(1471-1) 505
t43.8/t85.0
3 5,632 None 2026-01-17 14:05
2026-03-28 15:25 		2768.2s
▶ (1051^181-1)/(1051-1) 486
t43.8/t85.0
3 5,632 None 2026-01-17 01:39
2026-03-28 03:40 		3663.0s
▶ (23^401-1)/(23-1) 482
t43.8/t85.0
3 5,632 None 2026-01-16 22:20
2026-03-28 01:21 		3523.2s
▶ (523^181-1)/(523-1) 472
t43.1/t85.0
3 5,632 None 2026-01-16 13:44
2026-03-25 07:39 		2878.8s
Recent Factors Found View All 39003 Factors →
Factor Bits Digits Composite Discovery Method Sigma Group Order Discovered
431872390331 39 12 aliquot:4685772:i2446 ecm 3:1478069638 431872433856 2026-05-13 15:31
480597919 29 9 aliquot:4760874:i1102 ecm 3:175072586 480624496 2026-05-13 15:31
2732664170141387 52 16 aliquot:4438920:i3264 ecm 3:767071726 2732664137197456 2026-05-13 15:31
1508225568478814567586764843597 101 31 aliquot:4438920:i3264 ecm 3:767071713 150822556847881577172508934182... 2026-05-13 15:31
2675661814379 42 13 aliquot:3935280:i2676 ecm 3:2537331619 2675662021200 2026-05-13 15:30
3587117 22 7 aliquot:4760874:i1102 ecm 3:3493535023 3586620 2026-05-13 15:30
67820766160604576221 66 20 aliquot:4760874:i1101 ecm 3:4263212391 67820766156873340880 2026-05-13 15:16
16021734367 34 11 aliquot:4760874:i1101 ecm 3:4263212348 16021690608 2026-05-13 15:16
1725338131784714273465780441441 101 31 aliquot:4760874:i1101 ecm 3:4263217078 172533813178471463852231445958... 2026-05-13 15:16
734259341 30 9 aliquot:4438920:i3263 ecm 3:2676778588 734283776 2026-05-13 15:15
6611441 23 7 aliquot:4337532:i1635 ecm 3:2516862547 6610992 2026-05-13 15:15
1325773411216111349 61 19 aliquot:4337532:i1635 ecm 3:2516862608 1325773411830496740 2026-05-13 15:15
18269901548626092847 64 20 aliquot:4944492:i2275 ecm 3:1376082650 18269901553266359880 2026-05-13 15:15
15089037983 34 11 aliquot:4944492:i2275 ecm 3:1376082462 15088928904 2026-05-13 15:15
198871395091 38 12 aliquot:3935280:i2675 ecm 3:1575019112 198871543440 2026-05-13 15:15
44289988560973527829 66 20 aliquot:3935280:i2675 ecm 3:1575019583 44289988553316339900 2026-05-13 15:15
1126867009 31 10 aliquot:4535496:i1491 ecm 3:2664754149 1126832800 2026-05-13 15:13
14992944218885099347 64 20 aliquot:4535496:i1490 ecm 3:3097913240 14992944225674479380 2026-05-13 15:11
94502166068449718653817867 87 26 aliquot:4535496:i1490 ecm 3:3097913717 94502166068432914294171440 2026-05-13 15:11
88215645518070677692125869 87 26 aliquot:4301208:i3438 ecm 3:1915276280 88215645518067344285169044 2026-05-13 15:01
317463308758131962343787 79 24 aliquot:4301208:i3438 ecm 3:1915275976 317463308757713529940408 2026-05-13 15:01
66660680287 36 11 aliquot:4337532:i1634 ecm 3:1754764845 66661075116 2026-05-13 15:01
4998033630487603 53 16 aliquot:4337532:i1634 ecm 3:1754764848 4998033751097648 2026-05-13 15:01
1217162395994548469281 71 22 aliquot:4760874:i1100 ecm 3:637856368 1217162395988276964500 2026-05-13 15:01
567916772357636898101617 79 24 aliquot:4760874:i1100 ecm 3:637857125 567916772358407854172156 2026-05-13 15:01

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