is 2 82642103 - 1
has 24877752 decimal digits
takes 257.884 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
-unknown- primality tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual27592.590964.0000%695000132050006.22863.7699%98.819565.3572%1.3572%
PrimeNet2715.784961.9718%340000160000005.39895.2676%11.183863.9750%2.0032%
GPU7227592.590964.0000%550000180000006.79033.8903%99.381365.4005%1.4005%
Difference---+145000-4795000-0.5617-0.1204%-0.5617-0.0434%-0.0434%

Known prime factors (1 factor, 91.6 bits, 0.00011081% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
8264210336956524014832773607729266732891.57822359380190768362712
23 × 3 × 209497 × 488353 × 9106193
2017-08-1448835391061936,635,5934.33414.4970

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2017-08-14T18:05:50Jwb52zClay695000132050002891.5786.229515.812.463.770%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2010-01-03T22:49:001997rj7Manual testing263264--0.024--
2010-12-01T17:50:00Architects Cubedm1_42264265--0.045--
2012-08-18T07:09:00Carsten KossendeyManual testing265266--0.090--
2013-02-02T13:32:00rjbelansManual testing266267--0.181--
2013-02-07T15:39:00SMoffatManual testing267268--0.362--
2013-02-08T20:31:00SMoffatManual testing268269--0.723--
2013-02-09T13:45:00Supermathiefleming2269270--1.447--
2013-09-05T06:27:00ManpowreManual testing270271--2.894--
2014-01-20T16:58:00PascalBieriManual testing271272--5.787--
2016-11-26T02:55:07Judge HaleManual testing272273--11.57--
2016-12-16T22:46:12RichD0Manual testing273274--23.15--
2016-12-19T13:02:01Mark RoseManual testing274275--46.30--


ECM factoring results:
No ECM results for M82642103


Lucas-Lehmer results:
No L-L results for M82642103


PRP results:
No PRP results for M82642103


P-1 factor-bounds graph:
B1 = 695000, B2 = 13205000 (P-1 stage 2)
B1 = 695000 (P-1 stage 1)
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TF factor-bounds graph:
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Last modified: 2017-08-14T18:05:50+00:00