is 2 5780329 - 1
has 1740053 decimal digits
takes 0.913 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
factored, 0 LL tests remaining
ResidueStatus
L-L739F9A874F76F9E5double-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual26810.311766.1765 %10500019687500.04732.7629 %10.359067.1110 %
Target2662.554965.1515 %3600040000000.05772.2769 %2.612665.9450 %
Difference+2+7.7567+1.0250 %+69000-2031250-0.0104+0.4860%+7.7463+1.1660 %

Known prime factors (1 factor, 81.5 bits, 0.00141016% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
578032934473603243576697860172792581.512298197587400100391
298197587400100391
2019-05-07129819758740010039190,4273.720e+96.948e+9

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2000-09-15ANONYMOUSv4_computers2000065000--0.0050.880%
2011-02-21markrtiny10500019687506--0.0473.476%


Trial Factoring results:
575859606162636465666768
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
1998-04-27ANONYMOUSv4_computers212620.053
2009-03-27GrunwalderGIMPManual testing2622630.170
2014-11-03NesowaManual testing2632640.340
2014-11-03lycornManual testing2642650.646
2015-09-09snme2pm1Manual testing2652661.293
2016-07-06Gordon SpenceManual testing2662672.586
2018-07-05ramgeisManual testing2672685.171


ECM factoring results:
Total ECM effort:1.921 GHz-days
Estimated T-Level:1.538
DigitsB1CompleteFacMiss
20110000.30873.514%
25500000.02897.193%
302500000.00299.821%


ECM Summary

B1B2factorcurvesGHz-days
50000500000061.441
50000500000020.480


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
1998-09-13netconxv4_computers739F9A874F76F9E50.913
2000-09-29ANONYMOUSv4_computers739F9A874F76F9E50.913


PRP results:
dateuseridcompidcofactorsres64
2019-05-08Chang Chia-Tchehomura
3447360324357669786017279
014DE27DD58CD317
2019-05-11marssystemssystem11
3447360324357669786017279
014DE27DD58CD317


CERT results:
No CERT results for M5780329


P-1 factor-bounds graph:
B1 = 105000, B2 = 1968750 (P-1 stage 2)
B1 = 105000 (P-1 stage 1)
B1 = 20000, B2 = 65000 (P-1 stage 2)
B1 = 20000 (P-1 stage 1)
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105
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1010
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1016
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1018
TF factor-bounds graph:
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262
this exponent TF target: 66
TF double-checked to: 67
ECM T-Level=1.54 ~= -11-bit
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Last modified: 2024-03-13T02:15:48+00:00