is 2 91463 - 1
has 27534 decimal digits
takes 0.000 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actualunknown10000000007055259686475012,388.947076.0756%12,388.947076.0756%76.0756%
PrimeNet2400.000057.5000%1000160000.00007.4226%0.000060.6546%3.1546%
GPU722440.000061.3636%900110000.00003.1795%0.000062.5921%1.2285%
Difference-440.0000-61.3636%+999999100+70552596853750+12,388.9470+72.8961%+12,388.9470+13.4835%+74.8472%

Known prime factors (4 factors, 339.5 bits, 0.37122148% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
91463182927617.4811
1
-111.909e-133.222e-96.558e-9
914637099739150862624171859.3013881208330616
23 × 19 × 83 × 179 × 1718669
2008-08-2617917186691.04970.00030.0006
91463157263614542501227797717630976731100.3118597116568585178039082341
3 × 7 × 23 × 65203 × 298013 × 916015657393
2019-02-042980139160156573931.598e+12160.81300.35
91463791874735985011546039709193642758347138509091360749162.43843289348478893735501771710617558922577354181
3 × 113 × 69191 × 196387 × 358051 × 1696861 × 3966503 × 3899600000939
2022-07-20396650338996000009391.443e+12684.611,278.6

11 Composite Factors:
exponentprime factorscomposite factordigitsbits*
914631298733983649847251545592476.781
9146328767761217416122097353093081674800936117.792
91463111653064117356470088444919664351682712064212683949159.612
9146320424360059795667003868963819440860263469770233627
7753
54177.092
9146314485526982953020708240588366548885616700605255533
87689
55179.919
9146356221040656517905734931905340633434813760171642754
16841377478008119
67221.738
9146310284346304174850942373888648246052330176706918094
09176542657919591184313
73239.219
9146312453308324589178209579431105725841154003898212526
920535656568132279290867299569
80262.749
9146322780463318921246023437365938771109447784710883229
11992826049038733453840482508258463
85280.230
9146388415240669849220958130822500070086414411591365116
85302828542615311236259496007830001922084998273
97322.049
9146316173534730013508442207996967470320697529069173646
73057390516814991038515240826224318761601242479085
071
103339.530
P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2016-12-12T08:19:48kkmrkkblmbrbkManual testing100000000200000000012-
skipped known factor: 182927
skipped known factor: 709973915086262417
--0.656--40.613%
2022-07-12T19:11:09George WoltmanSkylakeX10000000007055259686475049162.43812,3890.00024,77867.491%


P+1 Factoring results:
dateuseridcompidb1b2startfactorSmoothdigitsbits*ghz-days
2021-04-24T19:07:30nordisweet1640000000524000000027--1.091
2021-04-30T20:09:34nordisweet1640000000524000000065--1.091


Trial Factoring results:
No TF results for M91463


ECM factoring results:
Total ECM effort:14.119 GHz-days
Estimated T-Level:30.862
DigitsB1CompleteFacMiss
201100087.9910.000%
255000014.0260.000%
302500001.71418.016%
3510000000.17284.167%
4030000000.01598.533%
45110000000.00199.890%


ECM Summary

B1B2factorcurvesGHz-days
10.00000e+0
110001100000300.015
5000050000002740.636
250000250000005856.786
10000001000000001416.543
100000010000000030.139


Lucas-Lehmer results:
No L-L results for M91463


PRP results:
dateuseridcompidcofactorsres64PRP
2017-09-21T20:42:27Oliver KruseOliver-PC
182927
709973915086262417
FAA2C79E488BC6__no
2017-09-21T21:30:19Oliver KruseManual testing
182927
709973915086262417
FAA2C79E488BC6__no
2017-10-13T09:00:19kkmrkkblmbrbkManual testing
182927
709973915086262417
FAA2C79E488BC6__no
2019-02-05T22:00:47J.R. Allenaofafujitsu
182927
709973915086262417
1572636145425012277977176309767
0A5496D05F56C733no
2019-02-06T19:24:07kkmrkkblmbrbkc5.large
182927
709973915086262417
1572636145425012277977176309767
0A5496D05F56C733no
2022-05-12T18:19:45Jorge CoveiroManual testing
182927
0A5496D05F56C733no
2022-07-20T16:21:47George WoltmanManual testing
182927
709973915086262417
1572636145425012277977176309767
7918747359850115460397091936427583471385090913607
0A5496D05F56C733no


P-1 factor-bounds graph:
B1 = 1000000000, B2 = 70552596864750 (P-1 stage 2)
B1 = 1000000000 (P-1 stage 1)
B1 = 100000000, B2 = 2000000000 (P-1 stage 2)
B1 = 100000000 (P-1 stage 1)
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TF factor-bounds graph:
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Last modified: 2022-07-20T16:21:47+00:00