is 2 4297 - 1
has 1294 decimal digits
takes 0.000 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
-unknown- L-L tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual2676,915.037880.5970%10000000002010000000000.857216.8165%6,915.895183.8599%16.3599%
PrimeNet2400.000067.5000%500100000.00002.4355%0.000068.2915%0.7915%
GPU722440.000570.4545%500100000.00000.9712%0.000570.7415%0.2870%
Difference+23+6,915.0373+10.1425%+999999500+200999990000+0.8572+15.8453%+6,915.8945+13.1184%+13.1184%

Known prime factors (6 factors, 438.4 bits, 10.20339122% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
4297893777619.770104
23 × 13
-8131.662e-115.961e-101.173e-9
429772166568091032.749839732
22 × 17 × 53 × 233
-532332.344e-74.526e-97.772e-9
4297386212211511135.1694493975
52 × 19 × 9461
-2594611.834e-63.885e-86.937e-8
42971591928194451560243162312135913097.00718523716481865955819901235
5 × 37 × 53 × 1889211267910857299327
-5318892112679108572993271.286e+137.417e+91.385e+10
429725173688172148194118671404862329012736117.59929292166828191987571179200444879
15444643 × 1896590735583333818151653
-1544464318965907355833338181516534.481e+137.446e+121.391e+13
42979643742985524046211448944155370448805988741136.14711221483576360305109901028805411273919
37 × 6103966845214159 × 49686269206953581693
2020-09-306103966845214159496862692069535816933.414e+13195,477,262364,320,359

57 Composite Factors:
exponentprime factorscomposite factordigitsbits*
429764500818727775931652.518
4297345187591766773271754.938
42972787160985912589671592167.917
42972491100384505996658904695432787.687
429714228288058523321594528818538972320736116.776
4297114883994439279282494909955677982349111940129.755
4297614822108544258393081709925894712786324140132.175
429722499663493438096494803772223637837983967942137.369
4297102680671897955719270453135456000030042186646346149.525
4297181669868155176029243563747933322377099702474346150.348
4297549513859708361633793391452436398710022395125746151.945
4297972238578082848363802485865487865508410187617746152.768
42978619355674372725450730202960354533622470162319947155.916
42974436960155949659410288520430070964446525178345796950164.924
429769595583480728096525083676594714903293124271832058
3
51168.895
429716237234975012876588922467593660107423704077837243
11
52170.118
429737245313056732918036071338037001100766621347590699
37
52171.315
429786896447960315396205429440939814797051033225838505
29
52172.538
429739656529373042187387494429244275363901219343263713
158913
56184.694
429770163121544940658107497187522992627281446272362421
939193
56185.517
429762202931816654715927899713215794502120618732305241
5711991
57188.665
429733289004167907577283525732296696732839888528185572
51082049
58191.085
429726878664207420821623945312925446468778793306801517
635358251033
62204.064
429762710184285072426581344513772737781433729204973268
393546101961
62205.286
429740074703959574472516005450686122351398549590055407
067648498516057
65214.606
429724023531859315959688584969950566768525703545373140
027577591533521641
68223.834
429715352146358700193956502540104198336724825378815031
605670249435096324217
71233.153
429735817848680876593321937803697890376865941456950951
562701672058185877289
71234.376
429728920538519852237782521409717511858902743357179751
2102012260434529144882113
75247.355
429715477340041835810668948178980701560200075178581702
66702981078721732721521607
76249.775
429713721395316039983253860970786710076802904252601162
503421138529352087369697609
77252.923
429724276857872992379532716697519356666932883846710935
983928263715875892951835649
77253.746
429711079117155227831110581470586875849621168582936150
2188610408594516291731484643553
81265.902
429725848512156657973528548638013088596714517249550046
4974000212094392155525300310801
81267.124
429759291863966187956370067827585749054621584598707268
5965645329014187958571953913767
81268.322
429713833290550571885352260496564834498370942592887218
46462990319596674106643417339639
82269.544
429721698097199149510001612931758758043701272125861760
230907451759184407974812810856273
83273.516
429711169465139812274792409972070923059401479593982353
551483414382355357461047005997172063
86282.523
429799022600936480652065221750367261362468591925509235
341629645162380987674891150260869681
86285.672
429717519775167025571295989219342105869972074135837258
8423179018912723404269819845404784041
87286.495
429752993704300107573080570112736108032792516017878786
4044316585230313871048565253184927959
87288.092
429793760189676423416007077761472544693686115591801864
2605497254690291891362446791434611999
87288.915
429742788903380989206111184491173853394640017141263034
25151893103709284788834101128220819389503
91301.071
429799830110442659955271358076076333992626762270707660
10184191656418424325462209879134454951951
91302.293
429715658772089458614036215356495929358146030504906217
6963103673986757186098066771966351665812857
93306.264
429783800701048424691488557940415646578688695335293894
8332013519805325015786253605908053208630223
93308.684
429738243737697150389670436140967893165501170600466650
96421983562553973430709776404077819291491822831
97320.840
429767663511124149255189451731952331753024672539433798
82947899263891502163998289924306795560856451191
97321.663
429760476089982008748855462600629159217223132748277522
41641524560383155129631899573677154815995596376138
407
103341.433
429738647014520709903969625586889124409839432109929484
43463507373220571930096872879250236851999366594447
105559
106350.753
429734541812697276535840260048173000947653058112916444
80953483229514963117966192751397638942869437876685
150665206343
112370.522
429727890224048840299999613462080402080031584433281585
03550687202797394467820786969364865659284395419750
3845922699101231
116383.501
429714925948946302454707268825779130399491610679178371
61365453386592708036149742403230575165301975937560
63392365980478409
117385.921
429724927640779700336812754521297835529884389440025115
22828022556054646835265459515118021534358229085078
2394897252234600939487
122403.271
429713340469871379369060898609298393831066413318004007
44573730831508670810425808315932213779518104147545
13070638688934050960793
123405.691
429710771545109411998513662567335239612759002234626971
00312123091972637575882905665786995386366280519095
110765553591639471387336881
127418.670
429796273592732549277955457884451884553729027402581902
62256684407740280946598957772501033754402951035152
70814704192474751818159795489537
132438.440
P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2021-07-05T16:30:32ViliamF31000000000201000000000---0.857--16.817%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2009-10-25T00:00:00Carsten Kossendeyv4_computers??54.938170.1145.00398e-70.266


ECM factoring results:

Old Calculation Method

Total ECM effort:17.926 GHz-days
Estimated T-Level:33.797
DigitsB1CurvesCompleteFacMiss
20110001304 / 10013.0400.000%
25500001304 / 2804.6570.941%
302500001304 / 6402.03813.015%
3510000001200 / 15800.75946.779%
4030000001200 / 47000.25577.465%
4511000000415 / 97000.04395.812%
5044000000201 / 171000.01298.831%

New Calculation Method

Total ECM effort:17.926 GHz-days
Estimated T-Level:33.797
DigitsB1CompleteFacMiss
2011000288.0670.000%
255000082.6770.000%
3025000019.1090.000%
3510000003.8022.233%
4030000000.66251.579%
45110000000.10590.032%
50440000000.01598.487%
551100000000.00299.794%


ECM Summary

B1B2factorcurvesGHz-days
30000003000000007852.442
11000000110000001040.804
1100000011000000002142.441
4400000044000000002009.125
11000000090051415378213.114


Lucas-Lehmer results:
Exponent "4297" not found


PRP results:
dateuseridcompidcofactorsres64PRP
2017-09-21T18:33:49Oliver KruseOliver-PC020BE127815484__?
2017-09-21T19:21:11Oliver KruseManual testing020BE127815484__?
2017-10-02T09:55:58kkmrkkblmbrbkManual testing
893777
7216656809
38621221151
159192819445156024316231213591
251736881721481941186714048623290127
020BE127815484__no
2017-12-07T02:44:28ATHManual testing
893777
7216656809
38621221151
159192819445156024316231213591
251736881721481941186714048623290127
020BE127815484__no
2020-04-17T12:32:22Oliver KruseIOS-1
893777
7216656809
38621221151
159192819445156024316231213591
251736881721481941186714048623290127
CDD0E27347F609__no
2020-10-01T15:22:05mnd9vv
893777
7216656809
38621221151
159192819445156024316231213591
251736881721481941186714048623290127
96437429855240462114489441553704488059887
CDD0E27347F609E9no
2020-10-02T08:49:51Lord JuliusBlackboxNouveau
893777
7216656809
38621221151
159192819445156024316231213591
251736881721481941186714048623290127
96437429855240462114489441553704488059887
CDD0E27347F609E9no


P-1 factor-bounds graph:
B1 = 1000000000, B2 = 201000000000 (P-1 stage 2)
B1 = 1000000000 (P-1 stage 1)
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TF factor-bounds graph:
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Last modified: 2021-07-05T16:30:32+00:00