is 2 102775223 - 1
has 30938425 decimal digits
takes 409.210 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-daysProbability
Actual276148.907464.4737 %8550001795500010.31493.8340 %159.222465.8358 %
Target276148.907464.4737 %65000011000000038.14833.8533 %187.055765.8426 %
Difference---+205000-92045000-27.8334-0.0192 %-27.8334-0.0068 %

Known prime factors (1 factor, 80.5 bits, 0.00007829% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
10277522316632078311139004448241372580.4608091482472939516
22 × 3 × 7 × 19 × 467 × 997 × 10888879
2021-02-23997108888794,505.23.43056.3970

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2021-02-23Ben Deloi-061bb9679f697e312855000179550001222580.46010.313.834%


Trial Factoring results:
5758596061626364656667686970717273747576
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2010-04-301997rj7compw2632640.019
2010-08-25Richardsvn_022642650.036
2012-04-25Torchwood InstituteOpt6128x4x42652660.073
2013-09-04JoDuManual testing2662670.145
2013-12-23ANONYMOUSManual testing2672680.291
2014-05-06g0bManual testing2682690.582
2014-05-19g0bManual testing2692701.163
2014-10-20PascalBieriManual testing2702712.327
2014-12-13Ilya AlexandrovManual testing2712724.653
2020-02-20el groccoManual testing2722739.307
2020-03-31SRBaseManual testing27327418.61
2020-11-18Architects CubedGPU72_TF27427537.23
2020-11-29DRobinsonPEManual testing27527674.45


ECM factoring results:
No ECM results for M102775223


Lucas-Lehmer results:
No L-L results for M102775223


PRP results:
No PRP results for M102775223


CERT results:
No CERT results for M102775223


P-1 factor-bounds graph:
B1 = 855000, B2 = 17955000 (P-1 stage 2)
B1 = 855000 (P-1 stage 1)
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TF factor-bounds graph:
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this exponent TF target: 76
TF double-checked to: 67
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Last modified: 2024-03-13T02:15:48+00:00