is 2 1150631 - 1
has 346375 decimal digits
takes 0.034 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-L5386FAA45434B210double-checked
PRP4CF5DE15458B931APRP-tested

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual269103.757769.5652 %1200000088140272220206.865616.0485 %310.623374.4495 %
Target2600.133565.0000 %50001300000.00050.7709 %0.134065.2698 %
Difference+9+103.6242+4.5652 %+11995000+88140142220+206.8651+15.2776%+310.4893+9.1797 %

Known prime factors:
No known factors for M1150631

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2002-03-16Jossv4_computers10001000--4.30000e-50.038%
2002-03-16Jossv4_computers1000100000--0.0000.481%
2002-03-24Jossv4_computers20000200000--0.0012.323%
2013-10-07David Campeaui5-2500k12200003538000012--0.13711.178%
2016-07-26Bruno Victal5820K.ECM25000006250000012--0.25712.575%
2016-07-27Bruno VictalManual testing25000006250000012---12.575%
2018-04-17JossManual testing115063111506310012--0.31613.056%
2018-10-12JossManual testing115063112656941012--0.34313.209%
2022-06-15mikrG1261200000088140272220--266.526.368%


Trial Factoring results:
57585960616263646566676869
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
1999-07-12ANONYMOUSv4_computers212560.008
2001-11-14ANONYMOUSv4_computers212570.017
2003-05-04ANONYMOUSv4_computers212580.033
2016-02-23Mark RoseManual testing2582600.100
2009-04-14Sturle Sundegraun.ifi2602610.133
2011-05-09XyzzyManual testing2612620.267
2012-10-07dbaughManual testing2622630.853
2014-12-28Matthias WurtingerManual testing2632641.706
2015-01-10lycornManual testing2642653.247
2015-08-04omylistManual testing2652666.494
2017-02-27Smok_bmvManual testing26626712.99
2019-09-20YxinityManual testing26726825.98
2021-10-03MadPooManual testing26826951.96


ECM factoring results:
Total ECM effort:17.901 GHz-days
Estimated T-Level:25.658
DigitsB1CompleteFacMiss
201100014.8080.000%
25500001.62019.795%
302500000.13287.678%
3510000000.00999.129%


ECM Summary

B1B2factorcurvesGHz-days
50000500000028110.11
25000025000000447.793


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2015-11-11MadPooManual testing5386FAA45434B2100.034


PRP results:
dateuseridcompidcofactorsres64
2020-11-04Ethan O'ConnorHighland20204CF5DE15458B931A


CERT results:
dateuseridcompid
2020-11-05curtiscgrn201--09l


P-1 factor-bounds graph:
B1 = 12000000, B2 = 88140272220 (P-1 stage 2)
B1 = 12000000 (P-1 stage 1)
B1 = 1150631, B2 = 126569410 (P-1 stage 2)
B1 = 1150631, B2 = 115063100 (P-1 stage 2)
B1 = 2500000, B2 = 62500000 (P-1 stage 2)
B1 = 1220000, B2 = 35380000 (P-1 stage 2)
B1 = 2500000 (P-1 stage 1)
B1 = 1220000 (P-1 stage 1)
B1 = 1150631 (P-1 stage 1)
B1 = 20000, B2 = 200000 (P-1 stage 2)
B1 = 20000 (P-1 stage 1)
B1 = 1000, B2 = 100000 (P-1 stage 2)
B1 = 1000 (P-1 stage 1)
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102
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TF factor-bounds graph:
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266
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264
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262
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258
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this exponent TF target: 60
TF double-checked to: 67
ECM T-Level=25.66 ~= 69-bit
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Last modified: 2024-03-13T02:15:48+00:00