is 2 143999083 - 1
has 43348044 decimal digits
takes 825.745 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
Actual2726.641261.1111 %14850004529250032.19307.1241 %38.834363.8816 %
Target277212.558163.6364 %90000017000000084.08834.1272 %296.646465.1371 %
Difference-5-205.9168-2.5253 %+585000-124707500-51.8953+2.9970%-257.8121-1.2555 %

Known prime factors (1 factor, 73.5 bits, 0.00005104% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
143999083132992441076250876174972373.49446178224994756
22 × 53 × 34123 × 6383431
2019-11-0834123638343113.2843.16015.4011

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2019-11-08timbitManual testing148500045292500622373.49431.274.608%


Trial Factoring results:
575859606162636465666768697071727374757677
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2010-06-18Torchwood InstituteHTPC-V642632640.014
2010-12-22Mr-PlonkLinux-i72642650.026
2012-12-18RichardWEBDM-SOLR2652660.052
2015-02-28Jan KuipersLieke2662670.104
2016-04-04dbaughManual testing2672680.208
2016-04-20DerekManual testing2682690.415
2017-02-15JoDuManual testing2692700.830
2017-04-02Choi4KANGManual testing2702711.661
2017-04-14EPFEPF_412712723.321


ECM factoring results:
No ECM results for M143999083


Lucas-Lehmer results:
No L-L results for M143999083


PRP results:
No PRP results for M143999083


CERT results:
No CERT results for M143999083


P-1 factor-bounds graph:
B1 = 1485000, B2 = 45292500 (P-1 stage 2)
B1 = 1485000 (P-1 stage 1)
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108
TF factor-bounds graph:
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this exponent TF target: 77
TF double-checked to: 67
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Last modified: 2024-03-13T02:15:48+00:00