is 2 105565247 - 1
has 31778306 decimal digits
takes 432.964 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
Actual276144.971964.4737 %7740002328700011.89743.9969 %156.869365.8936 %
Target276144.971964.4737 %70000012000000042.81733.9683 %187.789265.8835 %
Difference---+74000-96713000-30.9198+0.0286%-30.9198+0.0102 %

Known prime factors (2 factors, 173.6 bits, 0.00016447% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
105565247146404824157953216683991192683.59869343286885859897
32 × 8171 × 479041 × 1968403
2021-04-06479041196840333,9683.33145.7979
10556524712559277515941364004540441692890.0215948585293387966972
22 × 43 × 10909 × 173549 × 18267461
2021-04-06173549182674614,221,9766.894711.055

1 Composite Factors:
P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2021-04-06TheJudgerManual testing7740002328700012253173.61911.553.997%
2021-04-06TheJudgerManual testing7740002328700012253173.61911.553.997%


Trial Factoring results:
5758596061626364656667686970717273747576
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2010-04-21Cedric VonckOracle10g2632640.019
2010-09-01sasaki3mate242642650.035
2012-05-12Torchwood InstituteOpt6128x4x42652660.071
2014-06-17Travis Glenn RussoManual testing2662670.142
2014-06-23Travis Glenn RussoManual testing2672680.283
2014-10-20ANONYMOUS2682690.566
2014-12-18wuxiaoDNE_Sheep2692701.133
2015-01-09shaugeManual testing2702712.265
2018-02-12el groccoManual testing2712724.530
2019-12-24mnd9Manual testing2722739.061
2020-04-02SRBaseManual testing27327418.12
2021-03-311997rj7Manual testing274276108.7


ECM factoring results:
No ECM results for M105565247


Lucas-Lehmer results:
No L-L results for M105565247


PRP results:
No PRP results for M105565247


CERT results:
No CERT results for M105565247


P-1 factor-bounds graph:
B1 = 774000, B2 = 23287000 (P-1 stage 2)
B1 = 774000 (P-1 stage 1)
104
105
106
104
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107
108
TF factor-bounds graph:
276
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273
272
271
270
269
268
267
266
265
264
this exponent TF target: 76
TF double-checked to: 67
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Last modified: 2024-03-13T02:15:48+00:00