is 2 5860273 - 1
has 1764118 decimal digits
takes 1.039 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
factored, 0 LL tests remaining
ResidueStatus
L-L86B1E0E2469A35DFdouble-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual26810.171066.1765 %6500010887500.03102.1811 %10.202066.9142 %
Target2662.520165.1515 %4000040000000.06572.3386 %2.585865.9665 %
Difference+2+7.6509+1.0250 %+25000-2911250-0.0347-0.1575 %+7.6162+0.9477 %

Known prime factors (1 factor, 83.9 bits, 0.00143132% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
5860273177891421640165443693981672683.8791517774185948038971
621923 × 2440453538377
2019-06-156219232440453538377369,79934,16863,816

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2001-02-11ANONYMOUSv4_computers30000345000--0.0121.744%
2011-06-09USAFSSP4_26006500010887506--0.0312.789%


Trial Factoring results:
575859606162636465666768
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
1998-05-08ANONYMOUSv4_computers212620.052
2009-03-21GrunwalderGIMPManual testing2622630.168
2014-10-09NesowaManual testing2632640.335
2014-10-15lycornManual testing2642650.638
2015-09-16snme2pm1Manual testing2652661.275
2016-07-17Gordon SpenceManual testing2662672.550
2018-07-05ramgeisManual testing2672685.101


ECM factoring results:
Total ECM effort:1.886 GHz-days
Estimated T-Level:1.346
DigitsB1CompleteFacMiss
20110000.26976.397%
25500000.02597.540%
302500000.00299.843%


ECM Summary

B1B2factorcurvesGHz-days
50000500000061.617
50000500000010.269


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
1998-10-29ANONYMOUSv4_computers86B1E0E2469A35DF1.039
2001-03-05ANONYMOUSv4_computers86B1E0E2469A35DF1.039
2001-05-20ANONYMOUSv4_computers86B1E0E2469A35DF1.039
2015-05-04MadPooManual testing86B1E0E2469A35DF1.039


PRP results:
dateuseridcompidcofactorsres64
2019-06-15ATHec2-PRPCF
17789142164016544369398167
B0C50462669301F3
2019-06-16marssystemsSystem01
17789142164016544369398167
B0C50462669301F3


CERT results:
No CERT results for M5860273


P-1 factor-bounds graph:
B1 = 65000, B2 = 1088750 (P-1 stage 2)
B1 = 65000 (P-1 stage 1)
B1 = 30000, B2 = 345000 (P-1 stage 2)
B1 = 30000 (P-1 stage 1)
103
104
105
106
103
104
105
106
107
108
109
1010
1011
1012
1013
TF factor-bounds graph:
268
267
266
265
264
263
262
this exponent TF target: 66
TF double-checked to: 67
ECM T-Level=1.35 ~= -12-bit
250
260
270
280
290
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Last modified: 2024-03-13T02:15:48+00:00