is 2 102719951 - 1
has 30921787 decimal digits
takes 408.989 GHz-days to do one PRP test
Last-known PrimeNet details:
-unknown- L-L tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP943886CDB0675125double-checked

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual276148.987664.4737%8550001795500010.31493.8338%159.302568.3075%5.8075%
PrimeNet2729.310162.5000%450000220000009.37655.3819%18.686667.8819%5.3819%
GPU72276148.987664.4737%6500002200000010.46823.8530%159.455868.3267%3.8530%
Difference---+205000-4045000-0.1533-0.0192%-0.1533-0.0192%-0.0192%

Known prime factors:
No known factors for M102,719,951

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2021-02-19T13:00:45Ben Deloi-0b79607f9e6698f568550001795500012---10.31--3.834%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2010-04-18T15:03:001997rj7compw263264--0.019--
2010-08-19T18:19:00sasaki3mate24264265--0.036--
2012-04-24T19:49:00sasaki3MATE_J2265266--0.073--
2013-09-07T00:53:00processinfoManual testing266267--0.145--
2013-12-17T05:20:00KayJongsma267268--0.291--
2014-10-06T15:47:00Red RavenManual testing268269--0.582--
2014-12-20T00:33:00SMoffatManual testing269270--1.164--
2014-12-26T14:19:00SMoffatManual testing270271--2.328--
2017-11-06T22:30:40el groccoManual testing271272--4.656--
2020-02-25T06:27:12el groccoManual testing272273--9.312--
2020-03-31T05:40:05SRBaseManual testing273274--18.62--
2020-11-13T01:03:01RichD0GPU72_TF274275--37.25--
2020-11-16T14:50:15DRobinsonPEManual testing275276--74.49--


ECM factoring results:
Exponent "102719951" not found


Lucas-Lehmer results:
Exponent "102719951" not found


PRP results:
dateuseridcompidcofactorsres64PRP
2021-02-21T13:54:41Ben Deloi-0b79607f9e6698f56943886CDB0675125no


P-1 factor-bounds graph:
B1 = 855000, B2 = 17955000 (stage 2)
B1 = 855000 (stage 1)
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108
TF factor-bounds graph:
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Last modified: 2021-02-21T13:54:41+00:00