is 2 95901791 - 1
has 28869316 decimal digits
takes 347.378 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
Actual27319.945963.0137 %9400009400004.93712.3168 %24.883063.8706 %
Target27579.789064.0000 %65000011000000034.70514.2053 %114.494165.5139 %
Difference-2-59.8431-0.9863 %+290000-109060000-29.7680-1.8885 %-89.6111-1.6433 %

Known prime factors (1 factor, 75.6 bits, 0.00007888% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
95901791591441203881755785412972375.647308357746875528
23 × 3 × 7 × 19 × 137 × 21517 × 32771
2019-09-072151732771104.450.11620.2300

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2019-09-07Ryan PropperManual testing94000094000012375.6474.9371.860%


Trial Factoring results:
57585960616263646566676869707172737475
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2011-01-18Architects Cubedm1_442642650.039
2014-02-28Carsten KossendeyManual testing2652680.545
2014-07-20ANONYMOUSManual testing2682690.623
2014-07-20Preben SManual testing2682690.623
2014-07-24SMoffatManual testing2692701.247
2014-09-29David_DirkxDIENSTB042702712.493
2018-11-10Andrew BManual testing2712724.987
2019-03-13Niels_Mache_NextcloudManual testing2722739.97


ECM factoring results:
No ECM results for M95901791


Lucas-Lehmer results:
No L-L results for M95901791


PRP results:
No PRP results for M95901791


CERT results:
No CERT results for M95901791


P-1 factor-bounds graph:
B1 = 940000 (P-1 stage 1)
103
104
105
106
103
104
105
106
TF factor-bounds graph:
273
272
271
270
269
268
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