is 2 6961133 - 1
has 2095510 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-L565AAE50D150B98Ddouble-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual272137.381968.0556%40000004568186709.06528.0827%146.447070.6375%2.5820%
PrimeNet2630.229363.4921%280007000000.02043.1631%0.249764.6468%1.1548%
GPU722674.268565.6716%450009000000.02902.2385%4.297566.4401%0.7684%
Difference+5+133.1133+2.3839%+3955000+455918670+9.0362+5.8442%+142.1495+4.1975%+1.8135%

Known prime factors:
No known factors for M6961133

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2001-09-16T00:00:00Dylan Jonesv4_computers3000030000---0.009--0.234%
2011-05-24T05:55:00Carsten Kossendeymother44000013530000---0.365--3.519%
2021-11-05T17:12:34Seth_TrManual testing20000005800000012---1.597--5.521%
2021-12-05T19:28:50Seth_TrManual testing4000000456818670---9.065--8.083%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
1998-07-21T00:00:00ANONYMOUSv4_computers21262--0.088--
2005-07-17T00:00:00ANONYMOUSv4_computers21263--0.229--
2014-02-09T10:13:00NesowaManual testing263264--0.282--
2014-02-15T15:54:00lycornManual testing264265--0.537--
2015-06-26T13:39:00VictordeHollanderManual testing265266--1.073--
2016-04-25T00:49:43Gordon SpenceManual testing266267--2.147--
2018-02-26T00:48:48-Anonymous-Manual testing267268--4.294--
2020-04-24T07:20:59TJAOIManual testing268269--8.588--
2021-08-02T22:34:53takahashiManual testing269270--17.18--
2021-08-11T16:33:44SRBaseManual testing270271--34.35--
2021-09-25T07:13:25SRBaseManual testing271272--68.70--


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)
1999-03-26T00:00:00ANONYMOUSv4_computersB462F4590134CC__1.518
1999-07-04T00:00:00ANONYMOUSv4_computers565AAE50D150B98D1.518
2001-11-03T00:00:00Stefan Rinkv4_computers565AAE50D150B98D1.518


PRP results:
No PRP results for M6961133


P-1 factor-bounds graph:
B1 = 4000000, B2 = 456818670 (P-1 stage 2)
B1 = 2000000, B2 = 58000000 (P-1 stage 2)
B1 = 4000000 (P-1 stage 1)
B1 = 2000000 (P-1 stage 1)
B1 = 440000, B2 = 13530000 (P-1 stage 2)
B1 = 440000 (P-1 stage 1)
B1 = 30000 (P-1 stage 1)
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TF factor-bounds graph:
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Last modified: 2021-12-05T19:28:50+00:00