is 2 80591831 - 1
has 24260559 decimal digits
takes 251.486 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
Actual27594.946564.0000 %6800006800003.07681.5819 %98.023364.5695 %
Target27594.946564.0000 %5000008500000023.09323.7863 %118.039665.3631 %
Difference---+180000-84320000-20.0164-2.2044 %-20.0164-0.7936 %

Known prime factors (1 factor, 76.8 bits, 0.00009530% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
805918311319746431068686187538492476.805818784245681604
22 × 33 × 641 × 30391 × 389173
2017-02-0130391389173343.790.22600.2799

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2017-02-01bamDesk268000068000012476.8053.0771.582%


Trial Factoring results:
57585960616263646566676869707172737475
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2010-12-10Architects Cubedm1_712642650.046
2011-03-30carlos56Manual testing2652660.093
2013-01-25GrunwalderGIMPcompute-0-62662670.185
2013-01-29Balazs HegyiSamsung_M2672680.371
2013-01-31sasablSRV012682690.742
2013-02-03sasablSRV012692701.484
2013-10-30timc995dl580_g5b2702712.967
2016-05-23BdotManual testing27127317.80
2016-10-22Judge HaleManual testing27327423.74
2016-10-23dh1Manual testing27427547.47


ECM factoring results:
No ECM results for M80591831


Lucas-Lehmer results:
No L-L results for M80591831


PRP results:
No PRP results for M80591831


CERT results:
No CERT results for M80591831


P-1 factor-bounds graph:
B1 = 680000 (P-1 stage 1)
103
104
105
106
103
104
105
106
TF factor-bounds graph:
275
274
273
271
270
269
268
267
266
265
this exponent TF target: 75
TF double-checked to: 67
250
260
270
280
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Last modified: 2024-03-13T02:15:48+00:00