is 2 88675183 - 1
has 26693890 decimal digits
takes 298.950 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
Actual276172.584964.4737 %7250007250003.54411.4702 %176.128964.9960 %
Target27586.291464.0000 %60000010000000029.40654.0498 %115.697965.4579 %
Difference+1+86.2934+0.4737 %+125000-99275000-25.8624-2.5796 %+60.4310-0.4619 %

Known prime factors (1 factor, 82.8 bits, 0.00009338% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
8867518384323469892915639752653832582.80247546262122129277
3 × 13 × 83 × 3547 × 21503 × 192581
2018-09-162150319258117,7800.15070.2139

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2018-09-16Oliver KruseHalfPM1-372500072500012582.8023.5441.649%


Trial Factoring results:
5758596061626364656667686970717273747576
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2010-11-15Architects Cubedm1_032642650.042
2011-03-22wavelet3000Manual testing2652660.084
2011-04-07wavelet3000Manual testing2662670.169
2011-06-22wavelet3000Manual testing2672702.360
2013-06-25GrunwalderGIMPcompute-head2702712.697
2014-01-29ebravicknksdqputil6002712725.393
2017-08-13ANONYMOUSManual testing27227432.36
2018-09-02TheJudgerManual testing274276129.4


ECM factoring results:
No ECM results for M88675183


Lucas-Lehmer results:
No L-L results for M88675183


PRP results:
No PRP results for M88675183


CERT results:
No CERT results for M88675183


P-1 factor-bounds graph:
B1 = 725000 (P-1 stage 1)
103
104
105
106
103
104
105
106
TF factor-bounds graph:
276
274
272
271
270
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