is 268138663-1
has 20,511,782 decimal digits
takes 182.176 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
Actual27456.148263.5135%620,00012,710,0004.95723.9707%61.105467.4842%6.0557%
PrimeNet2703.506861.4286%300,00013,000,0003.84555.3774%7.352366.8060%5.3774%
GPU7227456.148263.5135%450,00015,000,0004.81773.9367%60.965967.4502%3.9367%
Difference---+170,000-2,290,000+0.1395+0.0341%+0.1395+0.0341%+0.0341%

Known prime factors (1 factor, 117.7 bits, 0.00017271% known):
Remaining cofactor is PRP status unknown

GHz-days
exponentfactordigitsbits*kmin B1min B2date foundmin. TFmin. P-1normal P-1
6813866326714279557843604442242905129288641736117.6851960287917437094740341684216
23 × 3 × 23 × 421 × 131519 × 182467 × 364753 × 963667
364,753963,6672014-07-201.977e+91.54062.8778

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2014-07-20T15:32:00TheJudgerManual testing620,00012,710,0001236117.6854.957364.49.913.971%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2000-09-29T00:00:00Jocelyn Larouchev4_computers?253--1.76100e-5--
2009-01-06T01:28:001997rj7Manual testing?264--0.029--
2009-04-13T09:32:00jfarekCarnegie7264265--0.055--
2010-01-10T07:49:00runesklennie265266--0.110--
2010-01-12T01:36:00marvikvc1266267--0.219--
2010-01-15T09:28:00Dougaldougal267268--0.439--
2010-01-18T09:07:00Dougaldougal268269--0.877--
2012-03-05T04:42:00ddboy3ibm3269270--1.755--
2012-07-26T04:50:00Clown_RoyalManual testing270271--3.509--
2014-07-04T05:18:00RichD0Manual testing271272--7.019--
2014-07-14T10:31:00TheJudgerManual testing272273--14.04--
2014-07-14T10:31:00TheJudgerManual testing273274--28.08--


ECM factoring results:
Exponent "68138663" not found


Lucas-Lehmer results:
Exponent "68138663" not found


PRP results:
Exponent "68138663" not found


P-1 factor-bounds graph:
B1 = 620,000, B2 = 12,710,000 (stage 2)
B1 = 620,000 (stage 1)
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TF factor-bounds graph:
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Last modified: 2014-07-20T15:32:48+00:00