is 2 6929467 - 1
has 2085978 decimal digits
takes 1.511 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-LDADB30BAE9A43A9Adouble-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual272138.009768.0556%20000002588493605.05696.9788%143.066670.2849%2.2293%
PrimeNet2630.230363.4921%280007000000.02043.1607%0.250864.6460%1.1539%
GPU722674.288165.6716%450009000000.02902.2368%4.317066.4395%0.7679%
Difference+5+133.7216+2.3839%+1955000+257949360+5.0280+4.7420%+138.7496+3.8454%+1.4615%

Known prime factors:
No known factors for M6929467

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2001-08-31T00:00:00ANONYMOUSv4_computers3000030000---0.009--0.234%
2011-09-04T20:39:00Carsten Kossendeymother44000013640000---0.367--3.522%
2021-06-02T21:12:50Dylan DelgadoManual testing6300001890000012---0.514--3.947%
2021-12-06T09:51:06Seth_TrManual testing2000000258849360---5.057--6.979%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
1998-07-21T00:00:00ANONYMOUSv4_computers21261--0.044--
1998-07-29T00:00:00ANONYMOUSv4_computers21262--0.089--
2002-04-20T00:00:00ANONYMOUSv4_computers21263--0.230--
2014-02-09T10:10:00NesowaManual testing263264--0.283--
2014-02-17T08:58:00lycornManual testing264265--0.539--
2015-06-26T13:39:00VictordeHollanderManual testing265266--1.078--
2016-04-03T19:14:47Gordon SpenceManual testing266267--2.157--
2018-02-25T11:47:51-Anonymous-Manual testing267268--4.314--
2020-05-01T08:51:06TJAOIManual testing268269--8.627--
2021-07-22T10:35:05takahashiManual testing269270--17.25--
2021-08-10T15:25:16SRBaseManual testing270271--34.51--
2021-09-25T07:15:15SRBaseManual testing271272--69.02--


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)
1999-12-08T00:00:00ANONYMOUSv4_computers4BE1989D818621__1.511
2001-11-03T00:00:00ANONYMOUSv4_computersDADB30BAE9A43A9A1.511
2002-05-18T00:00:00ANONYMOUSv4_computersDADB30BAE9A43A9A1.511


PRP results:
No PRP results for M6929467


P-1 factor-bounds graph:
B1 = 2000000, B2 = 258849360 (P-1 stage 2)
B1 = 2000000 (P-1 stage 1)
B1 = 630000, B2 = 18900000 (P-1 stage 2)
B1 = 440000, B2 = 13640000 (P-1 stage 2)
B1 = 630000 (P-1 stage 1)
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: 2021-12-06T09:51:06+00:00