is 272923779-1
has 21,952,245 decimal digits
takes 194.970 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
Actual275104.930264.0000%625,00012,500,0004.93113.6236%109.861467.6236%6.1950%
PrimeNet2703.276761.4286%320,00014,000,0004.13005.5386%7.406766.9671%5.5386%
GPU7227452.463963.5135%500,00017,000,0005.42344.1240%57.887367.6375%4.1240%
Difference+1+52.4663+0.4865%+125,000-4,500,000-0.4923-0.5004%+51.9740-0.0140%-0.0140%

Known prime factors (1 factor, 121.6 bits, 0.00016674% known):
Remaining cofactor is PRP status unknown

GHz-days
exponentfactordigitsbits*kmin B1min B2date foundmin. TFmin. P-1normal P-1
72923779400503848905124474803796222919726892137121.59127460442560520929311946122740
22 × 5 × 67 × 79 × 179 × 241 × 613 × 13757 × 114277 × 6239683
114,2776,239,6832015-09-162.050e+91.73682.4615

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2015-09-16T08:19:00James Heinrich3930K625,00012,500,000637121.5914.931389.99.863.624%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2008-09-19T10:37:00Wojciech FlorekManual testing?264--0.027--
2010-05-24T11:36:00S00030vd01264265--0.051--
2010-07-27T23:31:00GBY30701555GBY30701555265266--0.102--
2010-09-27T02:51:00GrunwalderGIMPcompute-head266267--0.205--
2010-09-28T06:50:00GrunwalderGIMPcompute-head267268--0.410--
2010-09-30T02:23:00ManuelJC6-core268269--0.820--
2013-04-18T04:27:00SMoffatManual testing269270--1.640--
2013-08-21T22:21:00processinfoManual testing270271--3.279--
2015-03-27T11:18:00el groccoManual testing271272--6.558--
2015-09-03T09:31:00GregManual testing272273--13.12--
2015-09-03T09:31:00GregManual testing273274--26.23--
2015-09-05T13:58:00gcardonaManual testing274275--52.47--


ECM factoring results:
Exponent "72923779" not found


Lucas-Lehmer results:
Exponent "72923779" not found


PRP results:
Exponent "72923779" not found


P-1 factor-bounds graph:
B1 = 625,000, B2 = 12,500,000 (stage 2)
B1 = 625,000 (stage 1)
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108
TF factor-bounds graph:
275
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266
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264
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Last modified: 2015-09-16T08:19:00+00:00