is 2 11932229 - 1
has 3591959 decimal digits
takes 4.594 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
factored, 0 PRP tests remaining
ResidueStatus
L-L8123BEBF0A2F2570double-checked
PRPC512E96B6CC8F773PRP-tested

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual2672.490264.1791 %40000042845985013.24279.9243 %15.733067.7341 %
Target2684.995364.7059 %80000100000000.34642.9386 %5.341765.7430 %
Difference-1-2.5051-0.5268 %+320000+418459850+12.8964+6.9857%+10.3913+1.9911 %

Known prime factors (1 factor, 71.5 bits, 0.00059940% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
1193222933891582290238220729692271.521142016978932596
22 × 32 × 37 × 114997 × 927149
2016-02-2411499792714962.7610.08890.1307

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2001-10-06ANONYMOUSv4_computers180000180000--0.1001.488%
2016-02-24ThaManual testing3000006000000622271.5210.3414.554%
2021-11-17nordisweet16400000400000--0.2232.139%
2021-11-19nordisweet1640000012000000
skipped known factor: 3389158229023822072969
--0.5765.392%
2023-05-16nordisweet16_30.8b14400000428459850
skipped known factor: 3389158229023822072969
--16.479.121%


Trial Factoring results:
575859606162636465666768
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2000-02-16ANONYMOUSv4_computers212640.165
2013-10-08lycornManual testing2642650.313
2013-10-20NesowaManual testing2652660.626


ECM factoring results:
Total ECM effort:0.585 GHz-days
Estimated T-Level:0.192
DigitsB1CompleteFacMiss
20110000.03896.227%
25500000.00499.645%


ECM Summary

B1B2factorcurvesGHz-days
50000500000010.585


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2002-03-31cmarblev4_computers8123BEBF0A2F25704.594
2004-08-06Team Prime Ribv4_computers8123BEBF0A2F25704.594


PRP results:
dateuseridcompidcofactorsres64
2021-12-04LaurVZero818
3389158229023822072969
C512E96B6CC8F773


CERT results:
dateuseridcompid
2021-12-04curtiscwcm210--13l


P-1 factor-bounds graph:
B1 = 400000, B2 = 428459850 (P-1 stage 2)
B1 = 400000, B2 = 12000000 (P-1 stage 2)
B1 = 300000, B2 = 6000000 (P-1 stage 2)
B1 = 400000 (P-1 stage 1)
B1 = 300000 (P-1 stage 1)
B1 = 180000 (P-1 stage 1)
104
105
106
104
105
106
107
108
109
TF factor-bounds graph:
266
265
264
this exponent TF target: 68
TF double-checked to: 67
ECM T-Level=0.19 ~= -16-bit
250
260
270
280
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Last modified: 2024-03-13T02:15:48+00:00