is 278098261-1
has 23,509,920 decimal digits
takes 243.705 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
Actual2630.020457.1429%7,155,186200,345,20780.000017.1380%80.020474.2808%12.3090%
PrimeNet2716.121561.9718%320,00016,000,0005.31335.1904%11.434867.1622%5.1904%
GPU7227597.978064.0000%500,00017,000,0006.32993.7714%104.307967.7714%3.7714%
Difference-12-97.9575-6.8571%+6,655,186+183,345,207+73.6701+13.3665%-24.2874+6.5094%+6.5094%

Known prime factors (2 factors, 196.6 bits, 0.00025176% known):
Remaining cofactor is PRP status unknown

GHz-days
exponentfactordigitsbits*kmin B1min B2date foundmin. TFmin. P-1normal P-1
78098261568731051384510316513672375.590364112493736903
19 × 232 × 29 × 163 × 7663739
5297,663,7392015-05-26154.881.89153.5286
78098261271512613993849088184692711606675783937121.03017382756704009650623635058379
11 × 13 × 3911 × 7321 × 81547 × 1802039 × 28890311
1,802,03928,890,3112015-05-261.818e+914.83116.594

1 Composite Factors:
exponentprime factorscomposite factordigitsbits*
7809826115441765442087850060290078736853313922430675744793
7862315913
60196.621
P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2015-05-26T21:43:00Sergey NosovTS140-027,155,186200,345,2071260196.62180.00487.4160.017.138%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2002-01-15T00:00:00Jocelyn Larouchev4_computers?257--0.000--
2004-03-01T00:00:00AxelFoxv4_computers?262--0.004--
2010-10-19T19:34:00ANONYMOUSmozac265266--0.096--
2010-10-21T18:19:00Charles A. Morrischandra266267--0.191--
2010-10-24T16:14:00ANONYMOUS267268--0.383--
2010-11-15T16:41:00ANONYMOUS268269--0.765--
2010-12-17T21:51:00ANONYMOUS269270--1.531--
2013-01-11T14:55:00Simon HarrisonManual testing270271--3.062--
2013-11-14T00:48:00snme2pm1Manual testing271272--6.124--
2013-12-22T00:38:00snme2pm1Manual testing272273--12.25--
2014-06-22T01:01:00snme2pm1Manual testing273274--24.50--


ECM factoring results:
Exponent "78098261" not found


Lucas-Lehmer results:
Exponent "78098261" not found


PRP results:
Exponent "78098261" not found


P-1 factor-bounds graph:
B1 = 7,155,186, B2 = 200,345,207 (stage 2)
B1 = 7,155,186 (stage 1)
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TF factor-bounds graph:
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Last modified: 2015-05-26T21:43:00+00:00