is 2 2133987871 - 1
has 642394360 decimal digits
takes 329,286.184 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
Actual2680.027954.4118%----0.027954.4118%
Target28958,749.991565.1685%11000000480000000060,839.74884.2558%119,589.740266.6509%
Difference-21-58,749.9635-10.7568%-11000000-4800000000-60,839.7488-4.2558%-119,589.7123-12.2391%

Known prime factors (7 factors, 388.9 bits, 0.00001823% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
213398787150575512542711342.2021185
3 × 5 × 79		2012-08-205795.001e-100.00200.0023
21339878711459007507402711547.05234185
3 × 5 × 43 × 53		2019-07-0143531.224e-80.00970.0196
213398787123604167880403271651.068553053
3 × 184351		2019-07-0131843512.520e-72.24794.1974
2133987871947559969329807511756.39522201625
53 × 47 × 3779		2019-10-2212537794.552e-60.07250.0861
21339878713460528678826978891858.26481081264
24 × 3 × 11 × 153563		2020-03-07161535632.930e-51.87533.4963
2133987871924157390235469036972066.32521653295288
23 × 3 × 902220637		2021-09-0189022206370.013710,99820,542
21339878712264028884317534506732167.61753046901416
23 × 3 × 59 × 1181 × 31721		2021-09-011181317210.01710.63650.7222

120 Composite Factors:
P-1 results:
No P-1 results for M2133987871


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2019-07-0124224342.202132.25528e-10122,2254.68297e-10
2019-07-0124724847.052153.45157e-9122,2257.16699e-9
2019-07-0125125251.068161.11454e-7122,2252.31429e-7
2019-10-2225625756.395175.35516e-8122,2251.11197e-7
2020-03-07slaurpalvi2-rtx2126458.264180.002118,5530.003
2021-09-01slaurpalvi2-rtx26426867.617210.026669,8560.054
2021-09-01slaurpalvi2-rtx26426866.325200.026669,8560.054
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--1.793--
2022-01-19ramgeisr4mg31s275276--3.586--
2022-01-21ramgeisr4mg31s276277--7.172--
2022-01-27ramgeisr4mg31s277278--14.34--
2022-01-31ramgeisr4mg31s278279--28.69--
2022-02-14ramgeisr4mg31s279280--57.37--
2022-04-18ramgeisr4mg31s280281--114.7--


ECM factoring results:
No ECM results for M2133987871


Lucas-Lehmer results:
No L-L results for M2133987871


PRP results:
No PRP results for M2133987871


P-1 factor-bounds graph:
100
101
102
103
104
100
101
102
103
104
105
106
107
108
109
TF factor-bounds graph:
281
280
279
278
277
276
275
268
264
257
252
248
243
this exponent TF target: 89
250
260
270
280
290
Last modified: 2023-07-11T14:45:05+00:00