is 2 91107361 - 1
has 27426049 decimal digits
takes 330.011 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
Actual277335.957164.9351 %7000007000003.67661.2934 %339.633765.3886 %
Target27583.987864.0000 %60000011000000034.45684.1362 %118.444665.4890 %
Difference+2+251.9693+0.9351 %+100000-109300000-30.7802-2.8429 %+221.1891-0.1005 %

Known prime factors (1 factor, 80.4 bits, 0.00008825% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
9110736115983407679588329617044472580.4038771743306003743
32 × 13 × 1303 × 171401 × 335693
2019-04-291714013356933,352.60.94721.8321

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2019-04-29James Heinrichi3-810070000070000012580.4033.4221.631%


Trial Factoring results:
575859606162636465666768697071727374757677
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2010-12-26Architects Cubedm1_182642650.041
2011-10-30Shadowjd007Manual testing2652660.082
2014-05-31ANONYMOUS2662670.164
2014-06-15ANONYMOUS2672680.328
2014-06-17TobiasVM2682690.656
2014-06-28Mark Filipski22692701.312
2014-09-05shaugeManual testing2702712.625
2017-02-18monstManual testing2712725.249
2017-12-23Tim SorberaManual testing27227431.50
2018-12-09TheJudgerManual testing274276126.0
2019-02-17TheJudgerManual testing276277168.0


ECM factoring results:
No ECM results for M91107361


Lucas-Lehmer results:
No L-L results for M91107361


PRP results:
No PRP results for M91107361


CERT results:
No CERT results for M91107361


P-1 factor-bounds graph:
B1 = 700000 (P-1 stage 1)
104
105
106
104
105
106
TF factor-bounds graph:
277
276
274
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