is 2 2989201 - 1
has 899840 decimal digits
takes 0.254 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
-unknown- primality tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual2679.940467.1642%----9.940467.1642%0.0000%
PrimeNet2600.051463.3333%120002200000.00292.5134%0.054364.2549%0.9216%
GPU722641.190765.6250%130002000000.00291.3859%1.193666.1014%0.4764%
Difference+3+8.7497+1.5392%-13000-200000-0.0029-1.3859%+8.7468+1.0628%+1.0628%

Known prime factors (5 factors, 201.5 bits, 0.00673977% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
298920117935207824.0963
3
-137.482e-131.369e-72.512e-7
2989201116220134891133.4361944
23 × 35
2008-09-072432435.439e-102.999e-56.103e-5
2989201155617804071133.8572603
19 × 137
2008-09-07191375.985e-103.138e-64.772e-6
2989201137502707943831443.6452299991
887 × 2593
2008-09-3088725937.188e-70.00010.0002
2989201994754087533282989132066.43116639130114256
24 × 3 × 13 × 19 × 1403435401
2018-06-081914034354018.81069.436417.625

26 Composite Factors:
exponentprime factorscomposite factordigitsbits*
29892012084432176820072231857.532
29892012791037528880892491857.954
29892011808592218030099100232167.293
29892012466139530033135422812167.741
29892011598058326497219714322872477.081
29892012139786946389736950538812477.502
298920117841120474005549799625299912890.527
298920132437475808958959593138797612891.390
298920111561045423549701636123100374573199.867
2989201154801446691586061806296279759131100.288
2989201286615068838012205008615382840931101.177
2989201383775218193978348834623188836731101.598
2989201136781380774020114038965058540567934110.075
2989201248686327545276426903237756380080934110.938
29892012073497428077665736321064826996904859938123.963
29892012776395990313061176810717680809368633738124.385
29892011799104501566327633117163068490777870499941133.724
29892012453202377927870967452444390692203184055341134.172
29892014460240762594334588729938130892321618246341135.034
29892011589675052399707026118170181958154787520403144143.512
29892012128561811371552705275472082554217560873135344143.933
298920132267311650223910329776374886137278698434899979348157.821
298920128511151127524592252783788674647171452219446321941
7
51167.608
298920138176196699243751680525583823330980677294782344507
1
51168.029
298920124738174083930459131585978004288038066308257074322
0617
54177.369
298920144368427299732815813003475380435285034311831643718
05612562719
61201.465
P-1 results:
No P-1 results for M2989201


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2008-09-30T14:38:00markrManual testing??43.645143.26761e-70.5687.29323e-7
2008-09-07T19:43:00Will EdgingtonManual testing??33.436111.61084e-100.5683.59537e-10
2008-09-07T19:43:00Will EdgingtonManual testing??33.857112.15690e-100.5684.81417e-10


ECM factoring results:

Old Calculation Method

Total ECM effort:0.348 GHz-days
Estimated T-Level:0.150
DigitsB1CurvesCompleteFacMiss
20110003 / 1000.03097.030%
25500003 / 2800.01198.932%

New Calculation Method

Total ECM effort:0.348 GHz-days
Estimated T-Level:0.150
DigitsB1CompleteFacMiss
20110000.11589.102%
25500000.01198.938%


ECM Summary

B1B2factorcurvesGHz-days
50000500000030.348


Lucas-Lehmer results:
No L-L results for M2989201


PRP results:
dateuseridcompidcofactorsres64PRP
2017-10-26T21:21:42Oliver KruseGTX-0
17935207
11622013489
15561780407
13750270794383
531EBAC4A82CE8__no
2017-12-10T03:22:01kkmrkkblmbrbkc4.xlarge
17935207
11622013489
15561780407
13750270794383
531EBAC4A82CE8__no
2018-06-10T23:25:02Oliver KruseGTX-3
17935207
11622013489
15561780407
13750270794383
99475408753328298913
531EBAC4A82CE8__no


P-1 factor-bounds graph:
100
101
102
103
100
101
102
103
104
105
106
107
108
109
1010
TF factor-bounds graph:
267
2
220
230
240
250
260
270
280
290
2100
Last modified: 2018-06-10T23:25:02+00:00