is 2 34887539 - 1
has 10502196 decimal digits
takes 43.609 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
factored, 0 LL tests remaining
ResidueStatus
L-L5716E77E987750E0double-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual27113.703463.3803 %50000090000001.74564.4551 %15.449065.0117 %
Target27113.703463.3803 %260000400000004.39564.0037 %18.099064.8464 %
Difference---+240000-31000000-2.6500+0.4514%-2.6500+0.1653 %

Known prime factors (1 factor, 101.7 bits, 0.00029146% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
34887539406756099804015044613239773327331101.68258295327137293210136324
22 × 41 × 43 × 79 × 617 × 8069 × 23677 × 887693
2015-05-10236778876934.231e+90.12820.1637

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2005-11-27Khairatv4_computers540000540000--0.9792.008%
2015-05-10HBendtzHAL9007500000900000012231101.6821.7464.455%


Trial Factoring results:
575859606162636465666768697071
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2005-11-13veggiespamv4_computers212680.857
2013-03-13Carsten KossendeyManual testing2682691.714
2014-04-15Architects CubedManual testing2692703.427
2014-04-20Architects CubedManual testing2702716.854


ECM factoring results:
No ECM results for M34887539


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2006-01-15Khairatv4_computers5716E77E987750E043.61


PRP results:
No PRP results for M34887539


CERT results:
No CERT results for M34887539


P-1 factor-bounds graph:
B1 = 500000, B2 = 9000000 (P-1 stage 2)
B1 = 540000 (P-1 stage 1)
B1 = 500000 (P-1 stage 1)
103
104
105
106
103
104
105
106
107
TF factor-bounds graph:
271
270
269
268
this exponent TF target: 71
TF double-checked to: 67
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Last modified: 2024-03-13T02:15:48+00:00