is 2 1167919 - 1
has 351579 decimal digits
takes 0.036 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
factored, 0 LL tests remaining
ResidueStatus
L-LBE1BA23341E0255Bdouble-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual26725.441868.6567 %500000100000000.04524.4353 %25.487070.0469 %
Target2600.131565.0000 %50001400000.00050.7978 %0.132165.2792 %
Difference+7+25.3103+3.6567 %+495000+9860000+0.0447+3.6375%+25.3550+4.7676 %

Known prime factors (1 factor, 78.4 bits, 0.00671482% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
11679194053766937605691579697672478.424173546578898266557
3 × 1741 × 65587 × 506615257
2015-12-156558750661525752,4151.23012.2924

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2002-03-16Jossv4_computers10001000--4.45000e-50.039%
2002-06-09ANONYMOUSv4_computers500001000000--0.0054.187%
2012-02-07markrtiny5000001000000012--0.0478.620%


Trial Factoring results:
5758596061626364656667
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2001-11-10ANONYMOUSv4_computers212570.016
2003-05-04ANONYMOUSv4_computers212580.033
2022-03-07LordJuliusManual testing258260
2009-02-26Sturle Sundehummel.ifi2602610.132
2011-05-13XyzzyManual testing2612620.263
2012-10-13dbaughManual testing2622630.841
2014-12-31Matthias WurtingerManual testing2632641.681
2015-01-02lycornManual testing2642653.199
2015-09-23omylistManual testing2652666.398


ECM factoring results:
Total ECM effort:18.850 GHz-days
Estimated T-Level:25.658
DigitsB1CompleteFacMiss
201100014.8080.000%
25500001.62019.795%
302500000.13287.678%
3510000000.00999.129%


ECM Summary

B1B2factorcurvesGHz-days
50000500000027810.39
50000500000030.114
25000025000000448.351


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2002-11-02ANONYMOUSv4_computersBE1BA23341E0255B0.036


PRP results:
dateuseridcompidcofactorsres64
2017-09-29Oliver KruseGTX-0
405376693760569157969767
9E6F80DD41F2D680
2017-10-17Oliver KruseThreadripper-PC
405376693760569157969767
9E6F80DD41F2D680
2018-01-06ATHec2-1xh
405376693760569157969767
9E6F80DD41F2D680


CERT results:
No CERT results for M1167919


P-1 factor-bounds graph:
B1 = 500000, B2 = 10000000 (P-1 stage 2)
B1 = 500000 (P-1 stage 1)
B1 = 50000, B2 = 1000000 (P-1 stage 2)
B1 = 50000 (P-1 stage 1)
B1 = 1000 (P-1 stage 1)
102
103
104
105
106
102
103
104
105
106
107
108
109
TF factor-bounds graph:
266
265
264
263
262
261
260
258
257
this exponent TF target: 60
TF double-checked to: 67
ECM T-Level=25.66 ~= 69-bit
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Last modified: 2024-02-09T03:30:02+00:00