is 2 1369339 - 1
has 412213 decimal digits
takes 0.052 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-L98359B14FD2D6FD8double-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual270174.500770.0000%500000150000000.07143.6386%174.572171.0916%1.0916%
PrimeNet2560.007062.5000%60001000000.00062.6204%0.007663.4826%0.9826%
GPU722600.112265.0000%5500600000.00051.1378%0.112665.3982%0.3982%
Difference+10+174.3885+5.0000%+494500+14940000+0.0709+2.5008%+174.4595+5.6934%+5.6934%

Known prime factors (1 factor, 67.8 bits, 0.00495034% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
13693392546311115829126514972167.78792975921807132
22 × 7 × 13 × 255428356613
2014-03-281325542835661339.427770.441,439.0

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2003-02-09T00:00:00ANONYMOUSv4_computers2048204800---0.001--0.127%
2003-02-16T00:00:00ANONYMOUSv4_computers4096409600---0.001--0.280%
2003-09-21T00:00:00ANONYMOUSv4_computers15000191250---0.001--0.474%
unknown50000015000000---0.071--3.639%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2001-11-03T00:00:00ANONYMOUSv4_computers21257--0.014--
2003-02-24T00:00:00ANONYMOUSv4_computers21258--0.028--
2003-03-27T00:00:00ANONYMOUSv4_computers21259--0.056--
2022-03-07T17:32:38LordJuliusManual testing259260--0.056--
2009-04-14T18:35:00Sturle Sundebruch.ifi260261--0.112--
2011-09-30T12:33:00BdotManual testing261264--2.375--
2013-10-26T16:31:00David CampeauManual testing264265--2.729--
2014-02-11T14:12:00Never Odd Or EvenManual testing265266--5.457--
2014-02-11T14:12:00Never Odd Or EvenManual testing266267--10.91--
2014-02-11T14:12:00Never Odd Or EvenManual testing267268--21.83--
2014-03-28T12:55:00Never Odd Or EvenManual testing26726867.7872117.730.10636.05
2014-02-11T14:12:00Never Odd Or EvenManual testing268269--43.66--
2014-02-11T14:12:00Never Odd Or EvenManual testing269270--87.32--


ECM factoring results:

Old Calculation Method

Total ECM effort:25.266 GHz-days
Estimated T-Level:25.391
DigitsB1CurvesCompleteFacMiss
2011000301 / 1003.0104.855%
2550000301 / 2801.07534.064%
3025000050 / 6400.07892.479%

New Calculation Method

Total ECM effort:25.266 GHz-days
Estimated T-Level:25.391
DigitsB1CompleteFacMiss
201100012.2630.000%
25500001.35725.749%
302500000.11389.315%
3510000000.00899.236%


ECM Summary

B1B2factorcurvesGHz-days
50000500000025111.77
250000350000005013.50


Lucas-Lehmer results:
No L-L results for M1369339


PRP results:
dateuseridcompidcofactorsres64PRP
2017-09-30T10:17:42Oliver KruseGTX-1
254631111582912651497
404F22817BEA84__no
2017-10-24T07:41:33kkmrkkblmbrbkold
254631111582912651497
404F22817BEA84__no


P-1 factor-bounds graph:
B1 = 500000, B2 = 15000000 (P-1 stage 2)
B1 = 500000 (P-1 stage 1)
B1 = 4096, B2 = 409600 (P-1 stage 2)
B1 = 15000, B2 = 191250 (P-1 stage 2)
B1 = 15000 (P-1 stage 1)
B1 = 2048, B2 = 204800 (P-1 stage 2)
B1 = 4096 (P-1 stage 1)
B1 = 2048 (P-1 stage 1)
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TF factor-bounds graph:
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Last modified: 2022-03-07T17:32:38+00:00