is 2 129184331 - 1
has 38888359 decimal digits
takes 655.790 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
Actual2727.402962.5000 %10000010000001.09702.3102 %8.499963.3663 %
Target277236.934064.9351 %80000014000000061.71263.8720 %298.646766.2928 %
Difference-5-229.5312-2.4351 %-700000-139000000-60.6156-1.5618 %-290.1468-2.9265 %

Known prime factors (1 factor, 73.8 bits, 0.00005711% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
129184331161889135489011578868412373.77762658193232820
22 × 3 × 5 × 61 × 101 × 1667 × 101681
2019-10-20166710168114.8070.05240.0762

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2019-04-12MadPooManual testing100000100000--0.7690.475%
2019-10-20MadPooManual testing100000100000022373.7771.0971.248%


Trial Factoring results:
575859606162636465666768697071727374757677
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2010-05-30Torchwood InstitutePH2-940-v3-MVB2632640.015
2010-11-09Charles A. Morrischandra2642650.029
2012-10-08Richard172.26.176.512652660.058
2015-01-12Chih-Wei Huang2662670.116
2015-10-28ANONYMOUSSrvrUID2672680.231
2015-11-16BronzemanManual testing2682690.463
2015-11-16BronzemanManual testing2692700.926
2015-11-16BronzemanManual testing2702711.851
2015-11-16BronzemanManual testing2712723.702


ECM factoring results:
No ECM results for M129184331


Lucas-Lehmer results:
No L-L results for M129184331


PRP results:
No PRP results for M129184331


CERT results:
No CERT results for M129184331


P-1 factor-bounds graph:
B1 = 100000, B2 = 1000000 (P-1 stage 2)
B1 = 100000 (P-1 stage 1)
102
103
104
105
102
103
104
105
106
TF factor-bounds graph:
272
271
270
269
268
267
266
265
264
this exponent TF target: 77
TF double-checked to: 67
250
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280
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Last modified: 2024-03-13T02:15:48+00:00