is 2 102864857 - 1
has 30965408 decimal digits
takes 409.566 GHz-days to do one PRP test
Last-known PrimeNet details:
Assigned as pfactor on 2022-11-17, 0.0% done, ETC 2022-12-25
factored, 0 LL tests remaining
ResidueStatus
L-L4988B46E11D45D__
factored
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual276148.777764.4737%4850007891590027.47024.5984%176.247966.1073%1.6336%
Target276148.777764.4737%6500002200000010.46823.8537%159.245965.8428%1.3691%
Difference----165000+56915900+17.0020+0.7447%+17.0020+0.2646%+0.2646%

Known prime factors (1 factor, 127.0 bits, 0.00012350% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
10286485717503851601007007131956345402554539704939127.041850817864890776406365701038332
22 × 32 × 11 × 2843 × 147293 × 263303 × 429241 × 45396821
2022-12-25429241453968211.355e+916.62326.670

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2021-03-05T00:37:20-Anonymous-10350001035000---5.975--1.749%
2022-12-25T15:01:19Mark Roseleonardo4850007891590039127.04127.47819.154.944.598%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2010-04-19T23:38:001997rj7compa263264--0.019--
2010-08-20T09:04:00Donna NobleATH2-630-temp264265--0.036--
2012-04-25T18:27:00sasaki3MATE_J2265266--0.073--
2013-09-09T03:40:00JoDuManual testing266267--0.145--
2014-01-01T21:09:00SRS TechnologyManual testing267268--0.291--
2014-01-01T21:09:00SRS TechnologyManual testing268269--0.581--
2014-01-01T21:09:00SRS TechnologyManual testing269270--1.162--
2014-01-01T21:09:00SRS TechnologyManual testing270271--2.325--
2014-01-01T21:09:00SRS TechnologyManual testing271272--4.649--
2020-01-29T22:44:12Yves de WandelaarManual testing272273--9.299--
2020-02-07T17:46:52ixfd64Manual testing273274--18.60--
2020-10-24T04:07:03LOBESGPU72_TF274275--37.19--
2020-10-27T05:30:53ktonyGPU72_TF275276--74.39--


ECM factoring results:
No ECM results for M102864857


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2021-03-24T15:59:57-Anonymous-4988B46E11D45D__409.6


PRP results:
No PRP results for M102864857


P-1 factor-bounds graph:
B1 = 485000, B2 = 78915900 (P-1 stage 2)
B1 = 1035000 (P-1 stage 1)
B1 = 485000 (P-1 stage 1)
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107
104
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106
107
108
TF factor-bounds graph:
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Last modified: 2022-12-25T15:01:19+00:00