is 2 5795267 - 1
has 1744550 decimal digits
takes 1.027 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-LF4811F3ED58C02EEdouble-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual2675.127365.6716%6500010887500.03102.4645%5.158366.5177%0.8460%
PrimeNet2620.106062.9032%240005500000.01353.1888%0.119564.0862%1.1829%
GPU722662.548465.1515%360008000000.01992.2779%2.568365.9453%0.7938%
Difference+1+2.5789+0.5201%+29000+288750+0.0111+0.1866%+2.5900+0.5723%+0.5723%

Known prime factors (1 factor, 69.2 bits, 0.00119492% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
57952677015140182355099695992169.24960524736671797
227 × 266628795911
2011-05-3122726662879591124.7853,733.06,972.1

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2009-06-12T23:15:00Carsten Kossendeyleela30000405000---0.013--1.588%
2011-05-28T09:10:00harleeP4_2600650001088750---0.031--2.464%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
1998-04-27T00:00:00ANONYMOUSv4_computers21261--0.053--
1998-06-01T00:00:00ANONYMOUSv4_computers21262--0.106--
2009-02-02T05:24:00GrunwalderGIMPManual testing262263--0.169--


ECM factoring results:

Old Calculation Method

Total ECM effort:0.000 GHz-days
DigitsB1CurvesCompleteFacMiss

New Calculation Method

Total ECM effort:0.000 GHz-days
DigitsB1CompleteFacMiss


ECM Summary

B1B2factorcurvesGHz-days
10.00000e+0


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
1998-10-04T00:00:00ANONYMOUSv4_computersF4811F3ED58C02EE1.027
2000-11-25T00:00:00ANONYMOUSv4_computersF4811F3ED58C02EE1.027


PRP results:
dateuseridcompidcofactorsres64PRP
2017-09-20T19:21:11kkmrkkblmbrbkManual testing
701514018235509969599
284FA996CCFA86__no
2018-08-11T20:07:41ATHec2-PRPCFDC
701514018235509969599
284FA996CCFA86__no


P-1 factor-bounds graph:
B1 = 65000, B2 = 1088750 (P-1 stage 2)
B1 = 65000 (P-1 stage 1)
B1 = 30000, B2 = 405000 (P-1 stage 2)
B1 = 30000 (P-1 stage 1)
101
102
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104
105
101
102
103
104
105
106
107
108
109
1010
1011
1012
TF factor-bounds graph:
267
263
262
261
250
260
270
280
290
2100
Last modified: 2018-08-11T20:07:41+00:00