is 2 104915651 - 1
has 31582758 decimal digits
takes 417.732 GHz-days to do one PRP test
Last-known PrimeNet details:
-unknown- L-L tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP914757620EA9C7__double-checked

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual277291.740764.9351%17500003400000020.24744.2888%311.988169.2239%6.7239%
PrimeNet2729.115362.5000%450000220000009.37655.3954%18.491767.8954%5.3954%
GPU72276145.869564.4737%6500002400000011.09733.9266%156.966868.4003%3.9266%
Difference+1+145.8712+0.4614%+1100000+10000000+9.1501+0.3622%+155.0213+0.8236%+0.8236%

Known prime factors:
No known factors for M104,915,651

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2020-06-29T02:25:02Runtime ErrorManual testing17500003400000012---20.25--4.289%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2010-04-19T19:16:00carlos56xp10263264--0.019--
2010-08-29T15:05:00Cedric VonckOracle10g264265--0.036--
2012-05-08T19:34:00tscc02265266--0.071--
2013-09-09T21:39:00willmoreManual testing266267--0.142--
2014-05-12T01:19:00SMoffatManual testing267268--0.285--
2014-06-08T01:35:00SMoffatManual testing268269--0.570--
2014-06-11T00:31:00Quantum SingularityManual testing269270--1.140--
2014-06-24T22:23:00Quantum SingularityManual testing270271--2.279--
2014-06-24T22:23:00Quantum SingularityManual testing271272--4.558--
2020-01-25T00:14:22Architects CubedManual testing272273--9.117--
2020-01-26T00:43:26Hans LoeblichManual testing273274--18.23--
2020-05-03T17:09:38TheJudgerManual testing274275--36.47--
2020-05-03T17:09:38TheJudgerManual testing275276--72.94--
2020-05-03T17:09:38TheJudgerManual testing276277--145.9--


ECM factoring results:
Exponent "104915651" not found


Lucas-Lehmer results:
Exponent "104915651" not found


PRP results:
dateuseridcompidcofactorsres64PRP
2020-07-07T20:29:16Runtime ErrorManual testing914757620EA9C7__no


P-1 factor-bounds graph:
B1 = 1750000, B2 = 34000000 (stage 2)
B1 = 1750000 (stage 1)
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TF factor-bounds graph:
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Last modified: 2020-07-07T20:29:16+00:00