is 2 2150303 - 1
has 647306 decimal digits
takes 0.141 GHz-days to do one PRP test
Last-known PrimeNet details:
-unknown- L-L tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual26713.818567.1642%500000150000000.12305.1679%13.941572.3320%10.2631%
PrimeNet2580.017962.0690%90001700000.00172.7338%0.019664.8028%2.7338%
GPU722620.285764.5161%100001600000.00171.5179%0.287466.0340%1.5179%
Difference+5+13.5328+2.6481%+490000+14840000+0.1213+3.6500%+13.6540+6.2981%+6.2981%

Known prime factors (5 factors, 246.0 bits, 0.01144206% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
2150303262336967927.96761
61
-1618.425e-124.070e-75.873e-7
215030310057268173431339.871233857
13 × 17989
2008-07-1413179895.512e-89.461e-50.0002
215030332700478835703591651.538760369093
11 × 69124463
2014-07-0111691244630.00010.35910.6706
21503037259037954953304011859.333168791048400
24 × 3 × 52 × 132 × 17 × 173 × 283
2015-11-121732830.07001.706e-53.357e-5
21503031855032404628875269372167.33043134209565556
22 × 10783552391389
2018-01-1041078355239138925.96256,012104,616

26 Composite Factors:
exponentprime factorscomposite factordigitsbits*
21503032638393228923256186812167.838
21503038578544437206171111611532479.505
21503031904314000440332400612337672787.299
215030332887748505024301766819361372891.410
2150303486643574717055898787833800792995.297
21503037300609139407225844159619445433099.204
215030318656558363755309057412119126839133107.201
2150303237374017013519587707051223518395934110.871
215030360660447887110874025461439134726038336118.868
215030386276721942668595868001324986827647936119.376
215030313465750632869300694701453025060251173739126.663
215030319152196588845718058408492291883282108139127.171
21503034894304935806050508269124200777657791009741135.168
215030362271979667933126634158302491455049111235342138.838
215030315913477915566225084558634718059133263547836145146.835
2150303238733414650930188747402174068630419119660093746150.742
21503033532564179405262851658972157087281285166648167947154.629
215030361007839192104928284994339927940526289690122236948158.740
215030313542866527130129831772151254451466033741481265479
1
51166.534
215030344033649357700479017611617256551446343926290076280
3583
54178.201
215030362628599921078389444731015474370553995790439052193
8079
54178.709
215030316004611496880537232037926748862916223221070037487
6014823
57186.706
215030335527945292131414743833263951580428479952598572731
088958897
59194.501
215030311551654018440641759927371255048567313328861810173
5878380952761
63206.168
215030344285822024517738931449083068694543247220421097002
8494488426939969
66218.072
215030311617808231013783268974173367172379124926136451050
5403147670140032558534023
75246.039
P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2016-03-21T11:09:28alpertronManual testing5000001500000012---0.123--5.168%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2014-07-01T11:28:00TJAOIManual testing??51.538167.63963e-60.3051.64766e-5
2015-11-12T11:39:04TJAOIManual testing25926059.333180.0340.2870.070


ECM factoring results:
Total ECM effort:0.512 GHz-days
Estimated T-Level:0.300
DigitsB1CurvesCompleteFacMiss
20110006 / 1000.06094.148%
25500006 / 2800.02197.876%

ECM Summary

B1B2factorcurvesGHz-days
10.00000e+0
50000500000030.256
50000500000030.256


Lucas-Lehmer results:
Exponent "2150303" not found


PRP results:
dateuseridcompidcofactorsres64PRP
2017-09-30T15:30:09alpertronManual testing
262336967
1005726817343
3270047883570359
725903795495330401
8E21BD59BBFD01__no
2017-10-21T18:41:29Oliver KruseGTX-2
262336967
1005726817343
3270047883570359
725903795495330401
8E21BD59BBFD01__no
2018-01-14T04:50:14Oliver KruseGTX-5
262336967
1005726817343
3270047883570359
725903795495330401
185503240462887526937
5F39748C850D06__no
2018-01-14T05:13:06ATHec2-1xf
262336967
1005726817343
3270047883570359
725903795495330401
185503240462887526937
5F39748C850D06__no


P-1 factor-bounds graph:
B1 = 500000, B2 = 15000000 (stage 2)
B1 = 500000 (stage 1)
100
101
102
103
104
105
106
100
101
102
103
104
105
106
107
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109
1010
1011
1012
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1014
TF factor-bounds graph:
267
260
2
220
230
240
250
260
270
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290
2100
Last modified: 2019-11-11T10:55:46+00:00