is 2 1882099 - 1
has 566569 decimal digits
takes 0.102 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
factored, 0 LL tests remaining
ResidueStatus
L-L6BFA6078EC7741B5double-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual26715.787668.6567 %500000300000000.16585.7497 %15.953470.4589 %
Target2610.163265.5738 %100007500000.00401.6918 %0.167266.1562 %
Difference+6+15.6244+3.0829 %+490000+29250000+0.1618+4.0579%+15.7862+4.3027 %

Known prime factors (1 factor, 84.3 bits, 0.00448135% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
1882099245428524373207495470432412684.3446520074777501276380
22 × 5 × 192 × 181 × 1421011 × 3511069
2017-04-30142101135110692,361,0030.12070.2275

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2012-01-15markrtiny275000600000012--0.0467.186%
2015-10-07Bruno Victal5820K.ECM5000001500000012--0.1018.891%
2016-09-16JossManual testing5000003000000012--0.1669.901%
2016-12-23JossManual testing720000720000---4.469%
2017-01-03JossManual testing864000864000---4.741%
2017-01-21JossManual testing10368001036800---5.020%
2017-03-01JossManual testing12441601244160012---9.130%
2017-04-30JossManual testing1492992149299201222684.3440.1759.509%


Trial Factoring results:
5758596061626364656667
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2003-01-09ANONYMOUSv4_computers212580.020
2016-02-23Mark RoseManual testing2582600.061
2010-04-01Architects CubedManual testing2602610.082
2011-03-08GrunwalderGIMPManual testing212630.848
2016-02-23Mark RoseManual testing2612630.685
2015-05-09snme2pm1Manual testing2632653.028
2015-09-12ramgeisManual testing2652663.970


ECM factoring results:
Total ECM effort:39.275 GHz-days
Estimated T-Level:25.712
DigitsB1CompleteFacMiss
201100015.0240.000%
25500001.68518.552%
302500000.14286.735%
3510000000.01099.029%


ECM Summary

B1B2factorcurvesGHz-days
500005000000422.750
50000660000020916.33
250000400000004720.19


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
1999-03-15ANONYMOUSv4_computers6BFA6078EC7741B50.102
2015-07-06MadPooManual testing6BFA6078EC7741B50.102


PRP results:
dateuseridcompidcofactorsres64
2017-09-30alpertronManual testing
24542852437320749547043241
1E8E70258B8A6758
2017-10-19Oliver KruseGTX-2
24542852437320749547043241
1E8E70258B8A6758


CERT results:
No CERT results for M1882099


P-1 factor-bounds graph:
B1 = 1492992, B2 = 14929920 (P-1 stage 2)
B1 = 500000, B2 = 30000000 (P-1 stage 2)
B1 = 1244160, B2 = 12441600 (P-1 stage 2)
B1 = 1492992 (P-1 stage 1)
B1 = 500000, B2 = 15000000 (P-1 stage 2)
B1 = 1244160 (P-1 stage 1)
B1 = 1036800 (P-1 stage 1)
B1 = 864000 (P-1 stage 1)
B1 = 720000 (P-1 stage 1)
B1 = 275000, B2 = 6000000 (P-1 stage 2)
B1 = 500000 (P-1 stage 1)
B1 = 275000 (P-1 stage 1)
104
105
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107
104
105
106
107
108
TF factor-bounds graph:
266
265
263
261
260
258
this exponent TF target: 61
TF double-checked to: 67
ECM T-Level=25.71 ~= 69-bit
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Last modified: 2024-03-13T02:15:48+00:00