is 2 1310329 - 1
has 394449 decimal digits
takes 0.042 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
factored, 0 LL tests remaining
ResidueStatus
L-L121A7EE85B344802double-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual26722.676768.6567 %40816791510221340.55558.7268 %23.232271.3920 %
Target2600.117265.0000 %55002000000.00070.9750 %0.118065.3412 %
Difference+7+22.5595+3.6567 %+4076179+150822134+0.5548+7.7518%+23.1142+6.0507 %

Known prime factors (1 factor, 72.5 bits, 0.00552928% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
131032964589138653589790894232272.4522464615323845759
7 × 17 × 20711053141561
2015-10-161720711053141561729.8451,85896,856

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2003-11-16eteov4_computers200000200000012--0.0145.903%
2014-05-31mikrMSI408167915102213412--0.55614.573%


Trial Factoring results:
5758596061626364656667
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2001-11-03ANONYMOUSv4_computers212570.015
2003-06-17ANONYMOUSv4_computers212580.029
2022-03-07LordJuliusManual testing258260
2009-03-30Sturle Sundetristan.ifi2602610.117
2011-05-09XyzzyManual testing2612620.234
2013-01-07dbaughManual testing2622630.749
2015-04-09snme2pm1Manual testing2632641.498
2015-04-09snme2pm1Manual testing2642652.851
2015-10-02ramgeisManual testing2652665.703


ECM factoring results:
Total ECM effort:20.677 GHz-days
Estimated T-Level:25.704
DigitsB1CompleteFacMiss
201100014.6540.000%
25500001.65119.189%
302500000.14186.866%
3510000000.01099.021%


ECM Summary

B1B2factorcurvesGHz-days
5000050000002489.444
50000500000030.116
250000350000005011.12


Lucas-Lehmer results:
No L-L results for M1310329


PRP results:
dateuseridcompidcofactorsres64
2017-09-30Oliver KruseGTX-1
6458913865358979089423
DE0E08DB44C4104F
2017-10-23kkmrkkblmbrbkc4.xlarge
6458913865358979089423
DE0E08DB44C4104F


CERT results:
No CERT results for M1310329


P-1 factor-bounds graph:
B1 = 4081679, B2 = 151022134 (P-1 stage 2)
B1 = 4081679 (P-1 stage 1)
B1 = 200000, B2 = 2000000 (P-1 stage 2)
B1 = 200000 (P-1 stage 1)
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TF factor-bounds graph:
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this exponent TF target: 60
TF double-checked to: 67
ECM T-Level=25.7 ~= 69-bit
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Last modified: 2024-02-09T03:30:02+00:00