is 2 88177501 - 1
has 26544073 decimal digits
takes 297.272 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
Actual276173.558964.4737 %725000139562507.06803.5056 %180.626965.7191 %
Target27586.778564.0000 %60000010000000029.40654.0470 %116.184965.4569 %
Difference+1+86.7805+0.4737 %+125000-86043750-22.3385-0.5414 %+64.4420+0.2622 %

Known prime factors (1 factor, 80.3 bits, 0.00009103% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
8817750114566679177767759322995512580.2698259861649837275
34 × 52 × 110939 × 36767449
2018-07-25110939367674493,110.610.30518.289

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2018-07-25ynagata.orgMAGI-172500013956250622580.2697.0683.862%


Trial Factoring results:
5758596061626364656667686970717273747576
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2010-11-12Architects Cubedm1_sa2642650.042
2011-03-16wavelet3000Manual testing2652660.085
2011-04-26wavelet3000Manual testing2662670.169
2011-11-04wavelet3000Manual testing2672702.373
2013-11-17arnaudsrv-2102702712.712
2014-02-07ANONYMOUS2712725.424
2017-07-03GregManual testing27227310.85
2017-07-11Tim SorberaManual testing27327421.70
2018-07-04Strolling JellyfishManual testing274276130.2


ECM factoring results:
No ECM results for M88177501


Lucas-Lehmer results:
No L-L results for M88177501


PRP results:
No PRP results for M88177501


CERT results:
No CERT results for M88177501


P-1 factor-bounds graph:
B1 = 725000, B2 = 13956250 (P-1 stage 2)
B1 = 725000 (P-1 stage 1)
104
105
106
104
105
106
107
108
TF factor-bounds graph:
276
274
273
272
271
270
267
266
265
this exponent TF target: 75
TF double-checked to: 67
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Last modified: 2024-03-13T02:15:48+00:00