is 2 335427557 - 1
has 100973757 decimal digits
takes 4,989.485 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
Actual2722.851159.7222 %8000000250000000456.930310.9912 %459.781364.1492 %
Target2811,460.027064.1975 %2000000400000000510.83734.0606 %1,970.864365.6513 %
Difference-9-1,457.1759-4.4753 %+6000000-150000000-53.9070+6.9305%-1,511.0829-1.5021 %

Known prime factors (1 factor, 86.6 bits, 0.00002581% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
3354275571163085948780946299008020092786.588173373642759611772
22 × 32 × 37 × 4000879 × 32532949
2019-11-1940008793253294946,721119.82175.62

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2019-11-19Roland ClarksonManual testing800000025000000022786.588529.95.630%


Trial Factoring results:
57585960616263646566676869707172737475767778798081
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2010-04-21Architects CubedManual testing2642650.011
2013-07-19LaurVManual testing2652660.022
2015-05-29Jacques MOLNEManual testing2662690.312
2016-04-01Jacques MOLNEManual testing2692700.356
2016-04-01Jacques MOLNEManual testing2702710.713
2016-04-01Jacques MOLNEManual testing2712721.426


ECM factoring results:
No ECM results for M335427557


Lucas-Lehmer results:
No L-L results for M335427557


PRP results:
No PRP results for M335427557


CERT results:
No CERT results for M335427557


P-1 factor-bounds graph:
B1 = 8000000, B2 = 250000000 (P-1 stage 2)
B1 = 8000000 (P-1 stage 1)
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TF factor-bounds graph:
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this exponent TF target: 81
TF double-checked to: 67
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Last modified: 2024-03-13T02:15:48+00:00