is 278915623-1
has 23,755,970 decimal digits
takes 246.255 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
Actual27596.963264.0000%690,00013,800,0006.35393.7791%103.317167.7791%5.8073%
PrimeNet2716.058161.9718%340,00016,000,0005.39895.2381%11.457067.2099%5.2381%
GPU7227596.963264.0000%500,00017,000,0006.32993.7763%103.293167.7763%3.7763%
Difference---+190,000-3,200,000+0.0240+0.0027%+0.0240+0.0027%+0.0027%

Known prime factors (1 factor, 163.2 bits, 0.00020676% known):
Remaining cofactor is PRP status unknown

GHz-days
exponentfactordigitsbits*kmin B1min B2date foundmin. TFmin. P-1normal P-1
789156231308956610951313615937067300092917921335220789327150163.16382933933813797149896229501989290379253245
5 × 17 × 313 × 487 × 617 × 9133 × 23063 × 69109 × 208121 × 296347 × 11555123
296,34711,555,1232016-07-291.895e+94.11645.3203

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2016-07-30T02:03:54David HruskaDesktopIIc690,00013,800,0001250163.1636.354492.512.713.779%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2001-06-17T00:00:00Jocelyn Larouchev4_computers?257--0.000--
2003-06-17T00:00:00Jocelyn Larouchev4_computers?260--0.001--
2005-02-12T00:00:00ramgeisv4_computers?261--0.002--
2008-06-13T00:00:001997rj7v4_computers?264--0.025--
2010-11-13T13:52:00jativjativ264265--0.047--
2011-01-14T16:24:00blackivorybandbarbr265266--0.095--
2011-01-22T09:12:00Milldangbsmt_xp266267--0.189--
2011-01-24T14:12:00Charles A. Morrischandra267268--0.379--
2011-01-30T10:23:00LEE Sau Dandanp4268269--0.758--
2011-02-04T05:59:00Donna NobleHTPC-V64269270--1.515--
2013-04-06T23:14:00Clown_RoyalManual testing270271--3.030--
2016-02-09T14:47:44RichD0Manual testing271272--6.060--
2016-06-30T01:11:53RichD0Manual testing272273--12.12--
2016-07-06T12:45:06Brian BeuningManual testing273274--24.24--
2016-07-08T02:26:05Sid & AndyManual testing274275--48.48--


ECM factoring results:
Exponent "78915623" not found


Lucas-Lehmer results:
Exponent "78915623" not found


PRP results:
Exponent "78915623" not found


P-1 factor-bounds graph:
B1 = 690,000, B2 = 13,800,000 (stage 2)
B1 = 690,000 (stage 1)
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TF factor-bounds graph:
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Last modified: 2016-07-30T02:03:54+00:00