is 2 2656581013 - 1
has 799710571 decimal digits
takes 409,925.209 GHz-days to do one PRP test
0 primality tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual2680.022452.9412%----0.022452.9412%
Target29094,385.805464.4444%14000000640000000080,978.62974.3086%175,364.435165.9764%
Difference-22-94,385.7830-11.5033%-14000000-6400000000-80,978.6297-4.3086%-175,364.4127-13.0352%

Known prime factors (7 factors, 353.5 bits, 0.00001331% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
26565810131434553747031237.06227
33
2012-08-2027277.335e-120.00600.0123
26565810133187897215611238.21460
22 × 3 × 5
2019-07-23451.575e-110.00090.0018
26565810133838015721101371548.44772236
22 × 18059
2019-07-234180592.810e-80.22100.4112
265658101366993181801251671652.5731260891
32 × 29 × 4831
2019-07-232948312.533e-70.06500.1101
2656581013314074980972988391754.8025911263
32 × 379 × 1733
2019-07-2337917331.297e-60.10130.1726
26565810131600934512626645591857.15230131483
30131483
2020-02-031301314831.175e-5367.31686.03
2656581013448701735106376416092065.2828445097908
22 × 34 × 13 × 61 × 32869
2021-12-0281328690.00550.41780.7483

120 Composite Factors:
P-1 results:
No P-1 results for M2656581013


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2019-07-2323823938.214121.96917e-12834,2065.903
2019-07-2324824948.447151.39806e-8153,0662.92033e-8
2019-07-2325225352.573162.74234e-8153,0665.72835e-8
2019-07-2325425554.802173.93606e-7153,0668.22187e-7
2020-02-03slaurpalvi2-rtx2126457.152180.001147,1670.003
2021-12-02slaursekunda-rtx206026426865.282200.021834,2060.043
Missing TF 68 - 69
Missing TF 69 - 70
Missing TF 70 - 71
Missing TF 71 - 72
Missing TF 72 - 73
Missing TF 73 - 74
2022-01-18ramgeisr4mg31s274275--1.440--
2022-01-19ramgeisr4mg31s27527637.062122.880834,2065.903
2022-01-19ramgeisr4mg31s27527638.214122.880834,2065.903
2022-01-20ramgeisr4mg31s276277--5.761--
2022-01-26ramgeisr4mg31s277278--11.52--
2022-01-31ramgeisr4mg31s278279--23.04--
2022-02-13ramgeisr4mg31s279280--46.09--
2022-04-18ramgeisr4mg31s280281--92.17--


ECM factoring results:
No ECM results for M2656581013


Lucas-Lehmer results:
No L-L results for M2656581013


PRP results:
No PRP results for M2656581013


P-1 factor-bounds graph:
100
101
102
103
100
101
102
103
104
105
106
107
108
TF factor-bounds graph:
281
280
279
278
277
276
275
268
264
255
253
249
239
this exponent TF target: 90
250
260
270
280
290
Last modified: 2023-07-11T14:45:05+00:00