is 2 81107723 - 1
has 24415858 decimal digits
takes 253.096 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
Actual27594.342564.0000 %6850006850003.09941.5885 %97.442064.5718 %
Target27594.342564.0000 %5500009000000024.53973.8813 %118.882265.3973 %
Difference---+135000-89315000-21.4402-2.2928 %-21.4402-0.8254 %

Known prime factors (1 factor, 82.5 bits, 0.00010172% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
8110772368493232894423739232609292582.50242223619626471168
28 × 19 × 113 × 2531 × 4129 × 7351
2017-04-284129735115,6000.01950.0380

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2017-04-28RuzovejLenovo68500068500012582.5023.0991.588%


Trial Factoring results:
57585960616263646566676869707172737475
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2010-12-10Architects Cubedm1_522642650.046
2011-02-16Luigi MorelliCipo22652660.092
2011-03-24trifdale2662670.184
2011-03-25Anonimi3_5502672680.369
2011-03-31oilwarzonedotcomalexbresource2682690.737
2012-04-07irreally9002Manual testing2692701.474
2013-06-08processinfoManual testing2702712.948
2014-01-08SWL551Manual testing2712725.897
2016-10-09The MawnManual testing27227311.79
2016-11-11ANONYMOUSManual testing27327570.76


ECM factoring results:
No ECM results for M81107723


Lucas-Lehmer results:
No L-L results for M81107723


PRP results:
No PRP results for M81107723


CERT results:
No CERT results for M81107723


P-1 factor-bounds graph:
B1 = 685000 (P-1 stage 1)
102
103
104
105
106
102
103
104
105
106
TF factor-bounds graph:
275
273
272
271
270
269
268
267
266
265
this exponent TF target: 75
TF double-checked to: 67
250
260
270
280
290
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Last modified: 2024-03-13T02:15:48+00:00