is 2 2363171 - 1
has 711386 decimal digits
takes 0.160 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
factored, 0 LL tests remaining
ResidueStatus
L-LCDA2CAA1086C63FFdouble-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual26712.573767.1642 %2000000600000000.50557.6032 %13.079269.6607 %
Target2630.675465.0794 %100007000000.00471.2708 %0.680065.5231 %
Difference+4+11.8984+2.0848 %+1990000+59300000+0.5008+6.3324%+12.3992+4.1376 %

Known prime factors (1 factor, 73.1 bits, 0.00309338% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
2363171101356948238712637775692373.1022144511510989104
24 × 79 × 179 × 4721 × 2007679
2015-08-31472120076791,272.70.01120.0200

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2003-09-21ANONYMOUSv4_computers2048204800--0.0010.652%
2010-11-03JossManual testing2000020000--0.0020.614%
2010-12-23Oscar Östlin7501175011--0.0081.403%
2011-01-22Oscar Östlin9000018225006--0.0194.118%
2014-08-07JossManual testing117160117160--0.0121.763%
2014-10-22JossManual testing144320144320--0.0151.948%
2015-08-31mikrMSI3000000300000012373.1020.2945.789%
2018-04-27alpertronManual testing20000006000000012
skipped known factor: 10135694823871263777569
---10.510%


Trial Factoring results:
5758596061626364656667
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
1999-03-01Dry Creek Photov4_computers212590.016
2022-03-09LordJuliusManual testing21260
2009-01-14Sturle Sundeginjtje.ifi2602610.065
2012-05-30Sebastian HornbostelManual testing2612620.130
2013-01-23dbaughManual testing2622630.415
2015-03-09VictordeHollanderManual testing2632652.412


ECM factoring results:
Total ECM effort:6.530 GHz-days
Estimated T-Level:21.240
DigitsB1CompleteFacMiss
20110002.6606.993%
25500000.24878.041%
302500000.01698.438%


ECM Summary

B1B2factorcurvesGHz-days
500005000000151.209
500007000000505.321


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
1999-03-26Dry Creek Photov4_computersCDA2CAA1086C63FF0.160


PRP results:
dateuseridcompidcofactorsres64
2017-10-12Oliver KruseGTX-1
10135694823871263777569
F141AEC81A713EFB
2017-11-24kkmrkkblmbrbkc4.xlarge
10135694823871263777569
F141AEC81A713EFB


CERT results:
No CERT results for M2363171


P-1 factor-bounds graph:
B1 = 2000000, B2 = 60000000 (P-1 stage 2)
B1 = 3000000 (P-1 stage 1)
B1 = 2000000 (P-1 stage 1)
B1 = 90000, B2 = 1822500 (P-1 stage 2)
B1 = 144320 (P-1 stage 1)
B1 = 117160 (P-1 stage 1)
B1 = 90000 (P-1 stage 1)
B1 = 75011 (P-1 stage 1)
B1 = 20000 (P-1 stage 1)
B1 = 2048, B2 = 204800 (P-1 stage 2)
B1 = 2048 (P-1 stage 1)
102
103
104
105
106
107
102
103
104
105
106
107
108
TF factor-bounds graph:
265
263
262
261
260
259
this exponent TF target: 63
TF double-checked to: 67
ECM T-Level=21.24 ~= 54-bit
250
260
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280
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Last modified: 2024-03-13T02:15:48+00:00