is 2 86175547 - 1
has 25941425 decimal digits
takes 277.557 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
Actual276177.590964.4737 %7400007400003.45601.4772 %181.046964.9985 %
Target27588.794464.0000 %5500009500000026.60103.9508 %115.395565.4223 %
Difference+1+88.7965+0.4737 %+190000-94260000-23.1451-2.4736 %+65.6514-0.4238 %

Known prime factors (1 factor, 80.8 bits, 0.00009382% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
8617554721774480015476630607883672580.84912633792748351589
61603 × 347177 × 590719
2018-02-243471775907195,331.81.68343.2998

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2018-02-24KrieselManual testing740000740000612580.8493.5371.657%


Trial Factoring results:
5758596061626364656667686970717273747576
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2010-11-20Architects Cubeda3_bu22642650.043
2011-03-04Michael CManual testing2652660.087
2013-03-08Freaks32Manual testing2662670.173
2013-03-11frmardev8292672680.347
2013-03-13frmardev8292682690.694
2013-03-18frmardev8292692701.387
2013-11-14PascalBieriManual testing2702712.775
2017-03-28Judge HaleManual testing27127316.65
2017-05-27ANONYMOUSManual testing27327422.20
2017-12-14Brian BeuningManual testing27427544.40
2018-01-21Strolling JellyfishManual testing27527688.80


ECM factoring results:
No ECM results for M86175547


Lucas-Lehmer results:
No L-L results for M86175547


PRP results:
No PRP results for M86175547


CERT results:
No CERT results for M86175547


P-1 factor-bounds graph:
B1 = 740000 (P-1 stage 1)
104
105
106
104
105
106
TF factor-bounds graph:
276
275
274
273
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