is 2 90025939 - 1
has 27100509 decimal digits
takes 303.504 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
Actual27442.497463.5135 %3750003750001.83311.3849 %44.330564.0188 %
Target27584.996764.0000 %60000010000000029.40654.0572 %114.403265.4606 %
Difference-1-42.4993-0.4865 %-225000-99625000-27.5733-2.6724 %-70.0727-1.4418 %

Known prime factors (1 factor, 91.4 bits, 0.00010154% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
9002593932856273885368546712784932972891.40818248226150336819432
23 × 3 × 383 × 2141 × 2153 × 3659 × 117703
2018-03-2836591177039,129,7880.04830.0585

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2018-02-25c10ck3rManual testing1000010000--0.0530.091%
2018-03-28One ManQ955037500037500012891.4081.8331.225%


Trial Factoring results:
57585960616263646566676869707172737475
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2010-01-24Carsten Kossendeymother2652660.083
2010-02-04Carsten Kossendeymother2662670.166
2010-10-19Carsten KossendeyManual testing2672680.332
2012-05-29Carsten KossendeyManual testing2682690.664
2014-03-31Andreas_TruetschManual testing2692701.328
2014-12-11JakeWManual testing2702712.656
2015-01-01Carsten KossendeyManual testing2712725.312
2016-06-21Carsten KossendeyManual testing27227310.62
2017-09-04Carsten KossendeyManual testing27327421.25


ECM factoring results:
No ECM results for M90025939


Lucas-Lehmer results:
No L-L results for M90025939


PRP results:
No PRP results for M90025939


CERT results:
No CERT results for M90025939


P-1 factor-bounds graph:
B1 = 375000 (P-1 stage 1)
B1 = 10000 (P-1 stage 1)
102
103
104
105
106
102
103
104
105
106
TF factor-bounds graph:
274
273
272
271
270
269
268
267
266
this exponent TF target: 75
TF double-checked to: 67
250
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Last modified: 2024-03-13T02:15:48+00:00