is 2 143648119 - 1
has 43242393 decimal digits
takes 800.040 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
Actual27426.633662.1622 %10000003000000020.83535.3743 %47.468964.1957 %
Target277213.077463.6364 %90000017000000081.66984.1260 %294.747265.1367 %
Difference-3-186.4438-1.4742 %+100000-140000000-60.8345+1.2484%-247.2783-0.9410 %

Known prime factors (1 factor, 75.7 bits, 0.00005272% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
143648119627210207602000139559272375.731218314800071277
3 × 7 × 13 × 107 × 599 × 773 × 16141
2019-02-277731614153.2680.01300.0133

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2019-02-27Franklin WebberManual testing10000003000000022375.73121.824.084%


Trial Factoring results:
575859606162636465666768697071727374757677
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2010-06-17Torchwood InstitutePH2-940-v3-MVB2632640.014
2010-12-26James Heinrichmum28002642650.026
2012-12-16sannerud.comJens20102652660.052
2015-02-26GrunwalderGIMPMotherInLaw2662670.104
2016-03-31dbaughManual testing2672680.208
2016-04-17DerekManual testing2682690.416
2016-12-17La GüiraManual testing2692700.832
2016-12-18ANONYMOUSManual testing2702711.665
2017-01-06Mausbieber_GuckyManual testing2712723.329
2017-01-06Mausbieber_GuckyManual testing2722736.659
2017-01-06Mausbieber_GuckyManual testing27327413.32


ECM factoring results:
No ECM results for M143648119


Lucas-Lehmer results:
No L-L results for M143648119


PRP results:
No PRP results for M143648119


CERT results:
No CERT results for M143648119


P-1 factor-bounds graph:
B1 = 1000000, B2 = 30000000 (P-1 stage 2)
B1 = 1000000 (P-1 stage 1)
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108
TF factor-bounds graph:
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273
272
271
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269
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266
265
264
this exponent TF target: 77
TF double-checked to: 67
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Last modified: 2024-03-13T02:15:48+00:00