is 2 308801 - 1
has 92959 decimal digits
takes 0.002 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
-unknown- primality tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual26796.223571.6418%50000055000000.00803.2904%96.231572.5749%0.9331%
PrimeNet2400.000052.5000%3200900000.000115.6281%0.000159.9233%7.4233%
GPU722440.000056.8182%55001500000.000111.4397%0.000161.7580%4.9399%
Difference+23+96.2235+14.8236%+494500+5350000+0.0078-8.1493%+96.2313+10.8168%+10.8168%

Known prime factors (6 factors, 323.9 bits, 0.10488214% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
3088019881633723.23616
24
-16163.631e-121.650e-73.358e-7
30880119145663824.19131
31
2008-07-211317.286e-122.716e-83.691e-8
30880113735468491030.3552224
24 × 139
2008-07-21161396.862e-102.341e-73.358e-7
30880157066424811032.4109240
23 × 3 × 5 × 7 × 11
2008-07-218111.853e-98.417e-81.679e-7
308801346887348864923373776582553432994.80856166811128351814562871
3 × 103471 × 180942199999200467
2021-10-261034711809421999992004671.702e+10101,649,307189,852,598
30880161011288796832678498149624742302348136118.877987873886367477412607951799740
22 × 5 × 7 × 46584287 × 118894861 × 1274004416263
2019-03-2211889486112740044162634.283e+11716.871,336.7

57 Composite Factors:
exponentprime factorscomposite factordigitsbits*
3088011891904153076791547.427
308801135728858701244171753.592
308801262974650856658871754.546
308801563909466594514731755.646
3088011092574538027099031856.601
30880178383407981470923691962.765
3088012598618988068638559534712477.782
30880110796420609928336669115992579.837
308801774556070962166468075585772686.002
3088011500702314004752549267456472786.956
308801148293895092457249476754236800155134110.192
30880134278134738261393527820127871981511936118.045
30880166413882803312554351494868596502740936118.999
3088014764660249913792266772741962521506420738125.164
30880119795620811540388556032874024070902598339127.218
308801602891164747312091325705770791151378962447343142.113
308801656277615967345846394025292853865169067889743142.235
3088011168101574499833929912918838892582600831290344143.067
30880147082623959336376818486330477337281056501003145148.400
30880183801863480318526731363469395321827238056136945149.232
30880191222579454345245791637015200395392183058424145149.354
308801195613059866804284388116797041101825455147023946150.455
308801348169612468564741366555928448631257413509636146151.287
308801379000284933538790182862022986315389252876172946151.409
30880127190212589690123537374614056176538416480877756748157.574
30880111542751065929517456347185924722627683600305661059
9
51166.303
30880182809925962861040426002339417130221365587437824355
77
52172.468
30880190142805148117997420775145342572872044405216451455
53
52172.591
30880116044422369661856454551765155536454808440435721692
647
53173.422
30880134404843321665808109242241589036334380888314659037
513
53174.523
30880137451417226086597158510454007883326988490665350423
457
53174.645
30880166659380671637386318862392767296068657053071400232
343
53175.477
30880126868370200329738452099771961977793584206518550957
26911
55180.810
30880147822727412374821205653284950288692198323405069629
16489
55181.642
30880152057464714056437967494226547461907302849653147397
41921
55181.764
30880115854509355398879958256172276919916453809368816185
6876452551
60196.659
30880165870353580441416068221914282827415281180131309989
2128256119
60198.713
30880147256664134812764159488328712317610035379510420841
485353946537
62204.878
30880151441276121475566128204387636087564944678012657987
620178036993
62205.0005
30880191559782277819035648869148850119905353982907847561
152595537207
62205.832
30880121164044221565488388573680679196066601937534617045
604524582708983
65213.685
30880190476016602931175069604179395925691070279418362241
9255006096117419031
69229.069
30880120913531779328084172164650593100626520390380601044
0208175065808315809239
72236.921
30880140519965838319017311804474095349900208625118482878
9199858935761815590729
72237.876
30880129069806252627934423271466701241937134285437968071
411784040722963483644567
74244.040
30880112077563382454819236174680116242920659872205195404
0513494309495880448106823
75246.095
30880140040343158680586599589838076825472044825685542932
62707369654968837081262180457
79261.112
30880128725715676957453351883529331339346697008041524474
7409041765681379817777113537911
81267.277
30880155656071398810729685405485897769980984021474114410
0009951472460135219164891562921
81268.231
30880111934604887965716277321851280110988080897495864167
61221482314026705600067169681959
82269.331
30880123123295838162008182171783463838778508965086373805
51159709002025826947742221158649
82270.286
30880116589099127568598846712318687248417390924468188828
6640128450787497367977834747050727
84276.450
30880154997287178484426721338246782843847050107907131759
96413636798660663366162024909581729993
88291.467
30880122849592322314435939921870714512358039388019335924
687897968744815478419098808094604193817
89293.522
30880116392738937925307612743438984643064048793312536217
95576552423540609978822915105003116597191
91299.687
30880131760930137002240290134271153466059664997912639753
39659301595489509220690615536723463047001
91300.641
30880131384985535249585872492038826103827956561231847210
427563563402941785468980669277999284319525632633
98323.877
P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
unknown5000005500000-
skipped known factor: 9881633
--0.008--3.290%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2008-07-21T09:16:00J FeitsmaManual testing??30.355102.22986e-100.0054.63369e-10
2008-07-21T09:16:00J FeitsmaManual testing??24.19184.85651e-140.0051.00919e-13
2008-07-21T09:16:00J FeitsmaManual testing??32.41010-0.005-


ECM factoring results:

Old Calculation Method

Total ECM effort:16.480 GHz-days
Estimated T-Level:27.688
DigitsB1CurvesCompleteFacMiss
2011000625 / 1006.2500.187%
2550000625 / 2802.23210.687%
30250000344 / 6400.53858.396%

New Calculation Method

Total ECM effort:16.480 GHz-days
Estimated T-Level:27.688
DigitsB1CompleteFacMiss
201100037.7310.000%
25500005.0540.638%
302500000.50960.083%
3510000000.04096.050%
4030000000.00399.737%


ECM Summary

B1B2factorcurvesGHz-days
5000050000002812.145
25000025000000923.512
25000025000000521.985
25000036750000693.049
250000367500001315.788


Lucas-Lehmer results:
No L-L results for M308801


PRP results:
dateuseridcompidcofactorsres64PRP
2017-09-22T16:11:53Oliver KruseOllaptop
9881633
19145663
1373546849
5706642481
1305D185A9FD4D__no
2017-09-22T20:37:35Oliver KruseManual testing
9881633
19145663
1373546849
5706642481
1305D185A9FD4D__no
2017-10-12T22:57:37Oliver KruseGTX-11305D185A9FD4D__no
2017-12-11T11:50:11ATHxps
9881633
19145663
1373546849
5706642481
1305D185A9FD4D__no
2019-03-22T14:48:07_p95holder_TFL16_PRPt11-E_b
9881633
19145663
1373546849
5706642481
610112887968326784981496247423023481
C2BD678CF382900Eno
2019-03-23T07:55:08kkmrkkblmbrbkc5.large
9881633
19145663
1373546849
5706642481
610112887968326784981496247423023481
C2BD678CF382900Eno
2021-10-26T17:34:40SRJ2877LTOS
9881633
19145663
1373546849
5706642481
34688734886492337377658255343
610112887968326784981496247423023481
C2BD678CF382900Eno


P-1 factor-bounds graph:
B1 = 500000, B2 = 5500000 (P-1 stage 2)
B1 = 500000 (P-1 stage 1)
100
101
102
103
104
105
106
107
108
109
100
101
102
103
104
105
106
107
108
109
1010
1011
1012
1013
1014
1015
1016
1017
1018
TF factor-bounds graph:
267
2
220
230
240
250
260
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290
2100
2110
2120
Last modified: 2021-10-27T01:22:40+00:00