is 2 4837561 - 1
has 1456251 decimal digits
takes 0.671 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
Actual2676.142365.6716%----6.142365.6716%0.0000%
PrimeNet2610.063562.2951%200004500000.00873.2289%0.072263.5125%1.2175%
GPU722651.508164.6154%320006500000.01322.3252%1.521365.4382%0.8228%
Difference+2+4.6342+1.0563%-32000-650000-0.0132-2.3252%+4.6210+0.2335%+0.2335%

Known prime factors (6 factors, 300.9 bits, 0.00621970% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
4837561145126831927.11315
3 × 5
-353.708e-126.249e-71.227e-6
48375615262879363131238.93754396
22 × 32 × 1511
2008-09-08915111.343e-81.826e-53.099e-5
483756117282767179831340.652178631
73 × 2447
2008-09-087324475.041e-84.067e-54.998e-5
4837561142596950848083771753.6631473851708
22 × 7 × 52637561
2014-10-047526375610.00040.57641.0765
48375614927555389858918471858.77450930162843
7 × 2689 × 2705741
2015-10-01268927057410.01410.03010.0553
483756140465009307912146654070632581.743418237716360704771
16091 × 52051 × 499356931
2019-06-2152051499356931180,3625.478010.213

57 Composite Factors:
exponentprime factorscomposite factordigitsbits*
4837561763785003906355141032066.050
48375612508193231719535018732167.765
48375619095711872850777658166792479.590
483756120694643586845159962632872580.776
4837561715120498307194374638468572685.886
483756175047054986364302483848940012892.600
4837561246446990206109386440249435912994.315
48375612593312957196850369794419401113097.711
48375618516179256864813654733579846013099.426
483756113200318397959082974153475021424933106.702
483756158725585672427930703125237820735333108.856
4837561702654373728922456036037844160231934112.436
4837561108913412660537994310064253463604083137119.713
4837561212962462415474200452766397636437871937120.680
4837561357660706981006920934277714831559012137121.428
4837561699347334798299510933973632634731392937122.395
48375613763592912692175373494422091680121824138124.823
483756112359261077767254011170125923368992943139126.539
48375611297020778861234315143775009060362551998341133.252
48375615770186943347600627762401085755605736675141135.406
483756144819624063669607167730390409794112271611342138.363
4837561101974002547568169089246994119046311872108943139.549
4837561199393574715893802467111711541655034791536143140.517
483756130906567292314376073968752472262118477230948945147.793
4837561101494062467573232210697443541836747587792899946149.508
4837561369798520291098041868409827360257945154510984746151.374
48375611214381194904622399641071093276428410900180257747153.089
4837561188232515377282724905271376441926704882585996387349160.365
4837561368058065596993741711118162320088773698416980377749161.332
4837561837408945365613810560767890526670301049077739608149162.518
48375616504530006971712319267597022566210876437159232790350165.476
483756128937357620279392884591904419026519694490379815099
1
51167.629
483756130367797785546261782051773623161082834260024771729
063
53174.343
483756199724797525971499680870330216173740142249687627983
233
53176.058
483756153667687358336256326667637254051330922845984564200
4857
54178.486
483756110493843295129972458168269072089097199698375022824
03993
55179.454
483756117623929444250119611152418521291346227230901812876
43487
55180.202
483756134460727289688303259422993712063338472148368949506
36863
55181.169
483756153415100684081824861367096364058091365527406078804
7840687
57188.445
483756163911417296366875357161325759737023801993786246463
75278601
58192.026
483756128432915773186027314544500291063207248816247620382
099779097
59194.179
483756144071822570651465763255865838587561542646556251025
37303789353
61201.456
483756114472743837060883945002222346196839852262186376189
113526424623
62203.171
483756115229382224328106359712409551876012262431993229120
0558565836183
63206.566
483756150011761455076824298070299659646787837432745474606
5829358971153
63208.282
483756152483957889175308587498984173220924874527315162900
183765735839929
65214.995
483756192752614569403124339568163632693016577549296796406
6939820105243431
66219.139
483756118136265049135138847416238831862189737652183521984
63444633334106119
67220.106
483756141263789622524029176392835357205808887169305184573
45150066147651607
67221.292
483756114963900565631421096418474387787483179622525272275
292329266613304649361
71233.116
483756149139946355169020122495160163641508049589879299199
409102619792467401351
71234.832
483756176168304867934617387508137887787078899292218725299
52439238888832019034999
73242.108
483756126320586727570419916705112796073014253461827747760
4882788979735785268178889
75247.219
483756121716634684891956577497586377542625353244208689827
25335345072143006199328104991
79260.229
483756171315246900356803597529544073867334832979700323653
11080135764278671628875748681
79261.945
483756125861760957793429740578348310853296646565835242386
415689686797819536999343698158863
83273.769
483756137532354118840852108712877975683418482190267015956
57386492924350087114601999993616321753153
91300.882
P-1 results:
No P-1 results for M4837561


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2008-09-08T00:15:00Will EdgingtonManual testing??40.652132.01268e-81.4264.28107e-8
2008-09-08T00:15:00Will EdgingtonManual testing??38.937125.85912e-91.4261.24626e-8
2014-10-04T11:33:00TJAOIManual testing253254*53.663170.0001.4260.000
2015-10-01T11:04:45TJAOIManual testing258259*58.774180.0061.4100.013
2022-06-22T06:41:27LordJuliusManual testing2126053.663170.0001.4260.001
2022-06-22T06:41:27LordJuliusManual testing2126027.11393.70813e-121.4267.88737e-12
2022-06-22T06:41:27LordJuliusManual testing2126040.652135.04055e-81.4261.07215e-7
2022-06-22T06:41:27LordJuliusManual testing2126058.774180.0141.4100.030
2022-06-22T06:41:27LordJuliusManual testing2126038.937121.34288e-81.4262.85637e-8


ECM factoring results:

Old Calculation Method

Total ECM effort:0.627 GHz-days
Estimated T-Level:0.150
DigitsB1CurvesCompleteFacMiss
20110003 / 1000.03097.030%
25500003 / 2800.01198.932%

New Calculation Method

Total ECM effort:0.627 GHz-days
Estimated T-Level:0.150
DigitsB1CompleteFacMiss
20110000.11589.102%
25500000.01198.938%


ECM Summary

B1B2factorcurvesGHz-days
50000500000030.627


Lucas-Lehmer results:
No L-L results for M4837561


PRP results:
dateuseridcompidcofactorsres64PRP
2017-11-21T03:26:25Oliver KruseGTX-0
145126831
526287936313
1728276717983
14259695084808377
492755538985891847
7EBA6B3F6FD4B2__no
2018-01-08T17:32:39kkmrkkblmbrbkc4.xlarge
145126831
526287936313
1728276717983
14259695084808377
492755538985891847
7EBA6B3F6FD4B2__no
2019-06-26T05:44:33Brett Walkerbrain
145126831
526287936313
1728276717983
14259695084808377
492755538985891847
4046500930791214665407063
7EBA6B3F6FD4B207no


P-1 factor-bounds graph:
100
101
102
103
104
105
100
101
102
103
104
105
106
107
108
109
TF factor-bounds graph:
267
260
259
254
2
220
230
240
250
260
270
280
290
2100
Last modified: 2022-06-22T06:41:27+00:00