is 2 6964829 - 1
has 2096623 decimal digits
takes 1.519 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-LE31C0EDAEBE82D29double-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual272137.309068.0556%20000002588493605.05696.9824%142.365970.2861%2.2305%
PrimeNet2630.229263.4921%280007000000.02043.1634%0.249664.6469%1.1549%
GPU722674.266365.6716%450009000000.02902.2387%4.295266.4401%0.7685%
Difference+5+133.0427+2.3839%+1955000+257949360+5.0280+4.7438%+138.0707+3.8459%+1.4620%

Known prime factors:
No known factors for M6964829

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2002-03-16T00:00:00ANONYMOUSv4_computers35000341250---0.016--0.799%
2011-12-10T15:33:00James HeinrichQ66001350002835000---0.089--2.033%
2020-01-25T22:27:42takahashivaio6000001200000012---0.386--3.584%
2021-12-07T09:06:41Seth_TrManual testing2000000258849360---5.057--6.982%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
1998-08-24T00:00:00Orionv4_computers21262--0.088--
2004-02-07T00:00:00Sturle Sundev4_computers21263--0.229--
2014-02-09T10:18:00NesowaManual testing263264--0.282--
2014-02-15T15:55:00lycornManual testing264265--0.536--
2015-06-26T13:39:00VictordeHollanderManual testing265266--1.073--
2016-04-25T00:49:44Gordon SpenceManual testing266267--2.146--
2018-02-27T00:21:59-Anonymous-Manual testing267268--4.292--
2020-04-24T07:20:57TJAOIManual testing268269--8.583--
2021-08-04T22:39:20takahashiManual testing269270--17.17--
2021-09-06T17:56:35SRBaseManual testing270271--34.33--
2021-09-25T07:10:35SRBaseManual testing271272--68.67--


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)
1999-03-15T00:00:00ANONYMOUSv4_computersF93E5A172B5FBA__1.519
1999-07-04T00:00:00ANONYMOUSv4_computersE31C0EDAEBE82D291.519
2002-08-10T00:00:00Team Prime Ribv4_computersE31C0EDAEBE82D291.519


PRP results:
No PRP results for M6964829


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 = 341250 (P-1 stage 2)
B1 = 35000 (P-1 stage 1)
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TF factor-bounds graph:
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Last modified: 2021-12-07T09:06:41+00:00