is 2 6963049 - 1
has 2096087 decimal digits
takes 1.518 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-LED34FD99FE16AAF9double-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual272137.344168.0556%20000002588493605.05696.9823%142.401070.2860%2.2304%
PrimeNet2630.229263.4921%280007000000.02043.1632%0.249664.6469%1.1548%
GPU722674.267465.6716%450009000000.02902.2386%4.296366.4401%0.7685%
Difference+5+133.0767+2.3839%+1955000+257949360+5.0280+4.7437%+138.1047+3.8459%+1.4620%

Known prime factors:
No known factors for M6963049

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2001-09-16T00:00:00ANONYMOUSv4_computers35000288750---0.015--0.756%
2002-01-02T00:00:00ANONYMOUSv4_computers30000232500---0.013--0.670%
2011-11-25T15:28:00James HeinrichQ66001350002835000---0.089--2.033%
2020-01-25T06:39:35takahashivaio6000001200000012---0.386--3.584%
2021-12-07T08:21:05Seth_TrManual testing2000000258849360---5.057--6.982%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
1998-07-21T00:00:00Kimon Berlinv4_computers21262--0.088--
2005-07-17T00:00:00ANONYMOUSv4_computers21263--0.229--
2014-02-09T10:18:00NesowaManual testing263264--0.282--
2014-02-15T15:54:00lycornManual testing264265--0.537--
2015-06-26T13:39:00VictordeHollanderManual testing265266--1.073--
2016-04-25T00:49:44Gordon SpenceManual testing266267--2.146--
2018-02-26T00:48:48-Anonymous-Manual testing267268--4.293--
2020-04-24T07:20:58TJAOIManual testing268269--8.586--
2021-08-04T22:39:15takahashiManual testing269270--17.17--
2021-09-06T17:47:04SRBaseManual testing270271--34.34--
2021-09-25T07:12:15SRBaseManual testing271272--68.68--


ECM factoring results:
Total ECM effort:1.989 GHz-days
Estimated T-Level:1.154
DigitsB1CompleteFacMiss
20110000.23179.392%
25500000.02197.887%
302500000.00199.865%


ECM Summary

B1B2factorcurvesGHz-days
50000500000061.989


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
1999-04-23T00:00:00ANONYMOUSv4_computersC26B33B072EDFF__1.518
1999-07-27T00:00:00ANONYMOUSv4_computersED34FD99FE16AAF91.518
2002-01-22T00:00:00ANONYMOUSv4_computersED34FD99FE16AAF91.518


PRP results:
No PRP results for M6963049


P-1 factor-bounds graph:
B1 = 2000000, B2 = 258849360 (P-1 stage 2)
B1 = 2000000 (P-1 stage 1)
B1 = 600000, B2 = 12000000 (P-1 stage 2)
B1 = 600000 (P-1 stage 1)
B1 = 135000, B2 = 2835000 (P-1 stage 2)
B1 = 135000 (P-1 stage 1)
B1 = 35000, B2 = 288750 (P-1 stage 2)
B1 = 30000, B2 = 232500 (P-1 stage 2)
B1 = 35000 (P-1 stage 1)
B1 = 30000 (P-1 stage 1)
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TF factor-bounds graph:
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2100
Last modified: 2021-12-07T08:21:05+00:00