is 272023467-1
has 21,681,224 decimal digits
takes 192.563 GHz-days to do one L-L test
Last-known PrimeNet details:
-unknown- L-L tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual27453.119763.5135%665,00013,965,0005.38724.1074%58.506967.6210%6.1924%
PrimeNet2703.317761.4286%300,00014,000,0004.05675.4856%7.374366.9142%5.4856%
GPU7227453.119763.5135%500,00017,000,0005.42344.1177%58.543167.6312%4.1177%
Difference---+165,000-3,035,000-0.0362-0.0103%-0.0362-0.0103%-0.0103%

Known prime factors (1 factor, 131.6 bits, 0.00018267% known):
Remaining cofactor is PRP status unknown

GHz-days
exponentfactordigitsbits*kmin B1min B2date foundmin. TFmin. P-1normal P-1
72023467402191040116703871154728878076762716955140131.56327920833088797563102226728274325
52 × 13 × 17 × 29 × 31 × 61 × 139 × 3433 × 368111 × 478787 × 1095713
478,7871,095,7132014-07-201.807e+91.98643.7775

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2014-07-20T15:31:00TheJudgerManual testing665,00013,965,0001240131.5635.387385.110.774.107%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2008-09-19T10:41:00Wojciech FlorekManual testing?264--0.027--
2010-05-05T16:34:00ANONYMOUS_264265--0.052--
2010-05-06T05:33:00ANONYMOUS_265266--0.104--
2010-07-07T17:24:00GrunwalderGIMPLyc-i7266267--0.208--
2010-07-22T08:50:00Stephen J. Herschkornherschko267268--0.415--
2010-07-23T18:09:00GrunwalderGIMPcompute-0-7268269--0.830--
2012-09-29T12:58:00ANONYMOUS269270--1.660--
2013-05-16T20:39:00RivarezLim4ik270271--3.320--
2014-06-30T22:52:00Bill StaffenManual testing271274--46.48--


ECM factoring results:
Exponent "72023467" not found


Lucas-Lehmer results:
Exponent "72023467" not found


PRP results:
Exponent "72023467" not found


P-1 factor-bounds graph:
B1 = 665,000, B2 = 13,965,000 (stage 2)
B1 = 665,000 (stage 1)
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TF factor-bounds graph:
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Last modified: 2014-07-20T15:31:10+00:00