is 2 999999937 - 1
has 301029977 decimal digits
takes 47,430.553 GHz-days to do one PRP test
Last-known PrimeNet details:
1 L-L tests remaining
ResidueStatus
L-L4307529C0B5EB6__
needs double-check
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual28731,342.944165.5172%174910003848100002,579.28084.4756%33,922.224969.9928%6.5782%
PrimeNet282979.466863.4146%36000002800000001,283.26215.4847%2,262.729068.8993%5.4847%
GPU7228615,671.472065.1163%55000002800000001,406.81404.1304%17,078.286069.2467%4.1304%
Difference+1+15,671.4722+0.4010%+11991000+104810000+1,172.4668+0.3452%+16,843.9389+0.7462%+0.7462%

Known prime factors:
No known factors for M999,999,937

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2019-12-20T09:46:59Fan MingManual testing17491000384810000---2,579--4.476%
2020-02-14T14:11:46KrieselManual testing7060000176500000---1,120--3.603%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2008-09-08T17:44:00monstabbe269270--0.120--
2016-06-17T20:36:45YxinityManual testing264270--0.235--
2016-06-17T20:38:48YxinityManual testing232270--0.239--
2017-04-02T15:10:39YxinityManual testing232270--0.239--
2018-06-10T18:20:40Gabriel LignelliManual testing21270--0.239--
2008-09-21T11:01:00Markus TervoorenManual testing270271--0.239--
2016-06-17T20:36:45YxinityManual testing270271--0.239--
2016-06-17T20:38:48YxinityManual testing270271--0.239--
2017-04-02T15:10:39YxinityManual testing270271--0.239--
2008-09-21T11:01:00Markus TervoorenManual testing271272--0.478--
2016-09-11T14:09:41ConductorManual testing271272--0.478--
2017-04-02T15:10:39YxinityManual testing271272--0.478--
2008-10-26T20:32:00Nathan EdingtonWilma272273--0.957--
2016-09-11T14:09:41ConductorManual testing272273--0.957--
2017-04-02T15:10:39YxinityManual testing272273--0.957--
2008-12-07T00:49:00BJBSovereign_VI273274--1.913--
2016-09-11T14:21:25ConductorManual testing273274--1.913--
2017-04-02T15:10:39YxinityManual testing273274--1.913--
2009-03-02T22:24:00Rob_Deetwopc274275--3.826--
2017-04-02T15:10:39YxinityManual testing274275--3.826--
2009-04-08T09:17:00Rob_Deetwopc275276--7.652--
2017-04-02T15:10:39YxinityManual testing275276--7.652--
2009-05-01T06:17:00Rob_Deetwopc276277--15.30--
2009-12-02T08:44:00James HintzOMFG277278--30.61--
2010-01-25T08:08:00lindeequad278279--61.22--
2010-07-02T10:59:00James HintzNEW_OMFG279280--122.4--
2010-10-23T23:42:00lindeeManual testing280281--244.9--
2010-11-04T03:13:00lindeeManual testing281282--489.7--
2010-12-16T04:58:00lindeeManual testing282283--979.5--
2016-04-17T13:20:03NoPolarBearsHereManual testing283284--1,959--
2018-03-31T15:09:46ramgeisManual testing283285--5,877--
2018-11-14T17:28:00KrieselManual testing285286--7,836--
2019-10-20T18:35:31Fan MingManual testing286287--15,671--


ECM factoring results:
Exponent "999999937" not found


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2018-09-10T09:52:00ramgeisManual testing4307529C0B5EB6__47,431


PRP results:
Exponent "999999937" not found


P-1 factor-bounds graph:
B1 = 17491000, B2 = 384810000 (stage 2)
B1 = 17491000 (stage 1)
B1 = 7060000, B2 = 176500000 (stage 2)
B1 = 7060000 (stage 1)
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TF factor-bounds graph:
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Last modified: 2020-02-14T14:11:46+00:00