is 2 84557117 - 1
has 25454229 decimal digits
takes 263.859 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
1 primality tests remaining
ResidueStatus
L-LBA5722FFDB49DC__
needs double-check
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual276180.990064.4737%670000127300006.00463.3880%186.994665.6773%1.2036%
PrimeNet2715.653961.9718%360000170000005.73105.3778%11.384964.0169%2.0451%
GPU7227590.494064.0000%550000190000007.03693.9416%97.530865.4190%1.4190%
Difference+1+90.4961+0.4737%+120000-6270000-1.0323-0.5536%+89.4638+0.2584%+0.2584%

Known prime factors:
No known factors for M84557117

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2017-11-30T19:49:17Chris Novakmacbook670000127300006---6.005--3.388%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2010-12-08T03:40:00Architects Cubedm1_06264265--0.044--
2012-09-13T18:11:00Carsten KossendeyManual testing265266--0.088--
2013-08-18T09:22:00RobishManual testing266267--0.177--
2013-08-18T16:11:00RobishManual testing267268--0.354--
2013-08-19T17:42:00RobishManual testing268269--0.707--
2013-08-20T18:17:00RobishManual testing269270--1.414--
2014-09-13T00:27:00SMoffatManual testing270271--2.828--
2017-02-04T00:47:48ANONYMOUSManual testing271272--5.656--
2017-02-04T00:47:48ANONYMOUSManual testing272273--11.31--
2017-02-04T00:47:48ANONYMOUSManual testing273274--22.62--
2017-05-05T20:37:45ktonyManual testing274275--45.25--
2017-05-05T20:37:45ktonyManual testing275276--90.50--


ECM factoring results:
No ECM results for M84557117


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2018-09-15T12:54:16aurashiftusslcburnin15BA5722FFDB49DC__263.9


PRP results:
No PRP results for M84557117


P-1 factor-bounds graph:
B1 = 670000, B2 = 12730000 (P-1 stage 2)
B1 = 670000 (P-1 stage 1)
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TF factor-bounds graph:
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Last modified: 2018-09-15T12:54:16+00:00