is 2 5534317 - 1
has 1665996 decimal digits
takes 0.874 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
factored, 0 LL tests remaining
ResidueStatus
L-L0E323B873203EA1Bdouble-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual26810.770166.1765 %6500011212500.02812.1773 %10.798166.9129 %
Target2662.668565.1515 %3400035000000.05102.1559 %2.719565.9028 %
Difference+2+8.1015+1.0250 %+31000-2378750-0.0230+0.0214%+8.0786+1.0101 %

Known prime factors (1 factor, 74.0 bits, 0.00133667% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
5534317185741353030995051733612373.9761678087404742040
23 × 5 × 41952185118551
2019-01-15841952185118551620.97523,371977,511

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2009-05-11Rob_Deetwopc650001121250--0.0312.784%


Trial Factoring results:
575859606162636465666768
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2016-02-23Mark RoseManual testing212620.111
2009-02-12GrunwalderGIMPManual testing2622630.177
2014-12-09NesowaManual testing2632640.355
2014-12-10monstManual testing2642650.675
2015-08-31snme2pm1Manual testing2652661.350
2016-07-25Gordon SpenceManual testing2662672.701
2018-07-05ramgeisManual testing2672685.401


ECM factoring results:
Total ECM effort:2.249 GHz-days
Estimated T-Level:1.731
DigitsB1CompleteFacMiss
20110000.34670.740%
25500000.03296.848%
302500000.00299.798%


ECM Summary

B1B2factorcurvesGHz-days
50000500000061.529
50000500000030.720


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2000-08-17ANONYMOUSv4_computers0E323B873203EA1B0.874


PRP results:
dateuseridcompidcofactorsres64
2019-01-16Chang Chia-Tchehomura
18574135303099505173361
8C7CE31A7D7AC5CE
2019-01-16ATHec2-PRPCFDC
18574135303099505173361
8C7CE31A7D7AC5CE


CERT results:
No CERT results for M5534317


P-1 factor-bounds graph:
B1 = 65000, B2 = 1121250 (P-1 stage 2)
B1 = 65000 (P-1 stage 1)
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TF factor-bounds graph:
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267
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this exponent TF target: 66
TF double-checked to: 67
ECM T-Level=1.73 ~= -11-bit
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Last modified: 2024-03-13T02:15:48+00:00