is 2 3583067 - 1
has 1078611 decimal digits
takes 0.376 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
factored, 0 LL tests remaining
ResidueStatus
L-L612C5471476A2ED0double-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual271133.427169.0141 %3000000900000001.17876.2669 %134.605870.9560 %
Target2640.993465.6250 %2000020000000.01951.9787 %1.012866.3052 %
Difference+7+132.4337+3.3891 %+2980000+88000000+1.1593+4.2882%+133.5930+4.6508 %

Known prime factors (1 factor, 77.5 bits, 0.00216306% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
35830672142941472469033485640332477.50429903731530404448
25 × 3 × 19 × 839 × 19540631293
2021-05-22839195406312938,542.4162.13302.82

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2009-07-09Carsten Kossendeymother20000245000--0.0051.726%
2011-12-27Squeeky_SquirrelP4_26008500015937506--0.0253.755%
2016-05-10Squeeky_SquirrelP4_2600225000658125012--0.0875.757%
2020-02-01BigBrotherWinston30000009000000012--1.17910.965%
2022-03-04JossManual testing9000090000--0.0141.449%
2022-03-22JossManual testing100000100000--0.0151.531%
2022-05-24JossManual testing100000130364850--1.3028.073%
2022-08-24JossManual testing10000001000000--0.1523.960%
2022-09-13JossManual testing1000000130364850--1.45510.702%


Trial Factoring results:
575859606162636465666768697071
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
1998-06-28ANONYMOUSv4_computers212600.021
2009-03-14S485122USB-Z2602610.043
2011-06-20Grant McCrackenthumper2612620.086
2012-07-02GrunwalderGIMPManual testing212630.445
2016-02-23Mark RoseManual testing2622630.274
2015-01-30VictordeHollanderManual testing2632640.548
2015-01-30VictordeHollanderManual testing2642651.043
2016-02-26ramgeisManual testing2652662.086
2017-01-20Gordon SpenceManual testing2662674.171
2018-10-01TJAOIManual testing2672688.342
2020-12-20axnManual testing26826916.68
2021-03-18ANONYMOUSManual testing26927033.37
2021-03-18ANONYMOUSManual testing27027166.74


ECM factoring results:
Total ECM effort:2.063 GHz-days
Estimated T-Level:3.077
DigitsB1CompleteFacMiss
20110000.61554.043%
25500000.05794.489%
302500000.00499.643%


ECM Summary

B1B2factorcurvesGHz-days
50000470000040.576
500005000000121.487


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
1998-07-05ANONYMOUSv4_computers612C5471476A2ED00.376
1999-07-26ANONYMOUSv4_computers612C5471476A2ED00.376


PRP results:
dateuseridcompidcofactorsres64
2021-05-23tottenhoff2018pc
214294147246903348564033
40029943B9E2500D


CERT results:
dateuseridcompid
2021-05-23yekosebahadir


P-1 factor-bounds graph:
B1 = 1000000, B2 = 130364850 (P-1 stage 2)
B1 = 3000000, B2 = 90000000 (P-1 stage 2)
B1 = 100000, B2 = 130364850 (P-1 stage 2)
B1 = 3000000 (P-1 stage 1)
B1 = 1000000 (P-1 stage 1)
B1 = 225000, B2 = 6581250 (P-1 stage 2)
B1 = 225000 (P-1 stage 1)
B1 = 85000, B2 = 1593750 (P-1 stage 2)
B1 = 100000 (P-1 stage 1)
B1 = 90000 (P-1 stage 1)
B1 = 85000 (P-1 stage 1)
B1 = 20000, B2 = 245000 (P-1 stage 2)
B1 = 20000 (P-1 stage 1)
101
102
103
104
105
106
107
101
102
103
104
105
106
107
108
109
1010
1011
TF factor-bounds graph:
271
270
269
268
267
266
265
264
263
262
261
260
this exponent TF target: 64
TF double-checked to: 67
ECM T-Level=3.08 ~= -6-bit
250
260
270
280
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Last modified: 2024-02-09T03:30:02+00:00