is 2 5361773 - 1
has 1614055 decimal digits
takes 0.847 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
factored, 0 LL tests remaining
ResidueStatus
L-L764F5070573DCBCCdouble-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual26811.116666.1765 %32000095200000.18804.5477 %11.304767.7146 %
Target2662.754465.1515 %3200032500000.04752.0729 %2.801965.8739 %
Difference+2+8.3622+1.0250 %+288000+6270000+0.1406+2.4747%+8.5028+1.8407 %

Known prime factors (1 factor, 69.1 bits, 0.00128967% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
53617736545917932647069317132169.14961042475433472
29 × 132 × 131 × 5385229
2019-07-15512538522927.4410.06730.1255

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2000-09-15ANONYMOUSv4_computers20000160000--0.0061.219%
2010-04-18Squeeky_SquirrelP4_26006000010050006--0.0292.656%
2019-07-15USAFSS6917th_Scty_Sq32000095200001222169.1490.1885.546%


Trial Factoring results:
575859606162636465666768
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
1998-03-09ANONYMOUSv4_computers212620.057
2009-05-21GrunwalderGIMPManual testing2622630.183
2014-12-23VictordeHollanderManual testing2632651.063
2015-08-18snme2pm1Manual testing2652661.394
2016-08-09Gordon SpenceManual testing2662672.787
2018-06-19ramgeisManual testing2672685.575


ECM factoring results:
Total ECM effort:1.946 GHz-days
Estimated T-Level:1.731
DigitsB1CompleteFacMiss
20110000.34670.740%
25500000.03296.848%
302500000.00299.798%


ECM Summary

B1B2factorcurvesGHz-days
50000500000091.946


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
1998-08-09Orionv4_computers764F5070573DCBCC0.847
2000-10-15ANONYMOUSv4_computers764F5070573DCBCC0.847


PRP results:
dateuseridcompidcofactorsres64
2019-07-18Chang Chia-Tcheex03
654591793264706931713
9DA63C3FC16D28AE
2019-07-19marssystemssystem11
654591793264706931713
9DA63C3FC16D28AE


CERT results:
No CERT results for M5361773


P-1 factor-bounds graph:
B1 = 320000, B2 = 9520000 (P-1 stage 2)
B1 = 320000 (P-1 stage 1)
B1 = 60000, B2 = 1005000 (P-1 stage 2)
B1 = 60000 (P-1 stage 1)
B1 = 20000, B2 = 160000 (P-1 stage 2)
B1 = 20000 (P-1 stage 1)
101
102
103
104
105
106
101
102
103
104
105
106
107
TF factor-bounds graph:
268
267
266
265
263
262
this exponent TF target: 66
TF double-checked to: 67
ECM T-Level=1.73 ~= -11-bit
250
260
270
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Last modified: 2024-03-13T02:15:48+00:00