is 2 3360167 - 1
has 1011512 decimal digits
takes 0.353 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
factored, 0 LL tests remaining
ResidueStatus
L-LAA4D519A67416287double-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual26817.738767.6471 %40000001500000001.82068.8014 %19.559270.4946 %
Target2641.059365.6250 %1800015000000.01501.7564 %1.074366.2288 %
Difference+4+16.6794+2.0221 %+3982000+148500000+1.8055+7.0450%+18.4849+4.2658 %

Known prime factors (1 factor, 99.5 bits, 0.00295976% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
33601678675614208104797563506324538473099.453129094985578169144026269
32 × 7 × 67 × 127277 × 2054849 × 116940293
2020-11-1920548491169402935.288e+101.26621.8122

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2009-07-06Carsten Kossendeymother15000206250--0.0041.496%
2011-10-13USAFSSP4_2600550009075006--0.0153.025%
2014-06-09JossManual testing7622476224--0.0121.311%
2014-09-29JossManual testing9532595325--0.0151.477%
2015-07-18Squeeky_SquirrelP4_2600230000667000012--0.0885.740%
2020-11-19mikrMSI40000001500000001223099.4531.56211.871%
2022-04-08JossManual testing1000000115661700--1.10410.472%
2022-09-03JossManual testing1344066231473550--2.11411.705%


Trial Factoring results:
575859606162636465666768
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
1999-06-06ANONYMOUSv4_computers212600.023
2009-03-27S485122USB-A2602610.046
2011-09-07Grant McCrackenthumper2612620.091
2012-11-15GrunwalderGIMPManual testing212630.475
2016-02-23Mark RoseManual testing2622630.292
2015-02-11VictordeHollanderManual testing2632651.696
2016-03-04ramgeisManual testing2652662.224
2017-03-04Gordon SpenceManual testing2662674.448
2018-12-03TJAOIManual testing2672688.896


ECM factoring results:
Total ECM effort:1.992 GHz-days
Estimated T-Level:2.885
DigitsB1CompleteFacMiss
20110000.57756.162%
25500000.05394.802%
302500000.00399.664%


ECM Summary

B1B2factorcurvesGHz-days
500005000000151.992


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
1999-07-12ANONYMOUSv4_computersAA4D519A674162870.353


PRP results:
dateuseridcompidcofactorsres64
2020-11-19mrhx
867561420810479756350632453847
E91DA65855BC7951


CERT results:
dateuseridcompid
2020-11-19Franklin Webberphi1


P-1 factor-bounds graph:
B1 = 1344066, B2 = 231473550 (P-1 stage 2)
B1 = 4000000, B2 = 150000000 (P-1 stage 2)
B1 = 1000000, B2 = 115661700 (P-1 stage 2)
B1 = 4000000 (P-1 stage 1)
B1 = 1344066 (P-1 stage 1)
B1 = 1000000 (P-1 stage 1)
B1 = 230000, B2 = 6670000 (P-1 stage 2)
B1 = 230000 (P-1 stage 1)
B1 = 55000, B2 = 907500 (P-1 stage 2)
B1 = 95325 (P-1 stage 1)
B1 = 76224 (P-1 stage 1)
B1 = 55000 (P-1 stage 1)
B1 = 15000, B2 = 206250 (P-1 stage 2)
B1 = 15000 (P-1 stage 1)
103
104
105
106
107
103
104
105
106
107
108
109
TF factor-bounds graph:
268
267
266
265
263
262
261
260
this exponent TF target: 64
TF double-checked to: 67
ECM T-Level=2.88 ~= -7-bit
250
260
270
280
290
2100
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Last modified: 2024-03-13T02:15:48+00:00