is 2 10520669 - 1
has 3167037 decimal digits
takes 3.437 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
1 primality tests remaining
ResidueStatus
L-L4D5194B8F6A8ED7Adouble-checked
PRP1B48C2542E1FC9__
unverified PRP

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual2672.824364.1791%12000021300000.10873.5179%2.933065.4393%1.2601%
PrimeNet2640.338362.5000%4500013000000.05373.7734%0.392063.9150%1.4150%
GPU722685.665564.7059%7000017000000.07522.7057%5.740765.6608%0.9549%
Difference-1-2.8412-0.5268%+50000+430000+0.0335+0.8122%-2.8077-0.2216%-0.2216%

Known prime factors (1 factor, 75.6 bits, 0.00071834% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
10520669562268225967185692960792375.5742672207565731731
857 × 3118095175883
2016-11-2185731180951758831,119.580,468150,291

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2003-11-28T00:00:00ANONYMOUSv4_computers45000270000---0.027--1.707%
2013-07-23T02:57:00NesowaOutback1200002130000---0.109--3.518%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2000-01-19T00:00:00ANONYMOUSv4_computers21264--0.338--
2013-07-04T15:41:00David CampeauManual testing264265--0.355--
2015-05-06T09:43:00ThaManual testing265266--0.710--
2015-11-14T12:38:42VictordeHollanderManual testing266267--1.421--


ECM factoring results:

Old Calculation Method

Total ECM effort:0.993 GHz-days
Estimated T-Level:0.100
DigitsB1CurvesCompleteFacMiss
20110002 / 1000.02098.010%
25500002 / 2800.00799.287%

New Calculation Method

Total ECM effort:0.993 GHz-days
Estimated T-Level:0.100
DigitsB1CompleteFacMiss
20110000.06593.752%
25500000.00699.419%


ECM Summary

B1B2factorcurvesGHz-days
50000500000010.497
50000500000010.497


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2000-08-24T00:00:00ANONYMOUSv4_computers4D5194B8F6A8ED7A3.437
2004-03-26T00:00:00ANONYMOUSv4_computers2B4A9E72B75A03__3.437
2004-07-02T00:00:00shaneamyv4_computers4D5194B8F6A8ED7A3.437


PRP results:
dateuseridcompidcofactorsres64PRP
2020-09-15T20:17:05fre_gamesgpu
56226822596718569296079
1B48C2542E1FC9__no
2021-03-08T05:35:48rucio
56226822596718569296079
1B48C2542E1FC958no


P-1 factor-bounds graph:
B1 = 120000, B2 = 2130000 (P-1 stage 2)
B1 = 120000 (P-1 stage 1)
B1 = 45000, B2 = 270000 (P-1 stage 2)
B1 = 45000 (P-1 stage 1)
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TF factor-bounds graph:
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264
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2100
Last modified: 2021-03-08T05:35:48+00:00