is 2 92641037 - 1
has 27887731 decimal digits
takes 335.566 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
Actual277330.395364.9351 %710000133125007.33543.1581 %337.730766.0425 %
Target27582.597464.0000 %60000011000000034.45684.1446 %117.054165.4921 %
Difference+2+247.7979+0.9351 %+110000-96687500-27.1214-0.9865 %+220.6765+0.5504 %

Known prime factors (1 factor, 114.3 bits, 0.00012343% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
926410372637307934425608186967171751515740135114.345142340156146223200576175100
22 × 3 × 52 × 7 × 73 × 4423 × 44729 × 480661 × 9764281
2019-12-0848066197642811.386e+95.18115.2186

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2019-12-08MarkSlaptop64710000133125006235114.3457.3353.839%


Trial Factoring results:
575859606162636465666768697071727374757677
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2011-01-05Architects Cubedm1_522642650.040
2013-07-14David CampeauManual testing2652660.081
2014-04-07Sacha Kerresihklx2662670.161
2014-04-08Sacha Kerresihklx2672680.323
2014-04-08hkskypManual testing2682690.645
2014-04-14Preben SManual testing2692701.291
2014-09-12shaugeManual testing2702712.581
2018-04-28storm5510Manual testing2712725.162
2019-01-28ktonyManual testing27227310.32
2019-03-18ktonyManual testing27327420.65
2019-06-11RichD0Manual testing27427541.30
2019-06-18Strolling JellyfishManual testing27527682.60
2019-07-14TheJudgerManual testing276277165.2


ECM factoring results:
No ECM results for M92641037


Lucas-Lehmer results:
No L-L results for M92641037


PRP results:
No PRP results for M92641037


CERT results:
No CERT results for M92641037


P-1 factor-bounds graph:
B1 = 710000, B2 = 13312500 (P-1 stage 2)
B1 = 710000 (P-1 stage 1)
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108
TF factor-bounds graph:
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265
this exponent TF target: 75
TF double-checked to: 67
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Last modified: 2024-03-03T02:29:32+00:00