is 2 58845587 - 1
has 17714287 decimal digits
takes 130.727 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
Actual27332.506264.3836%545000103550003.47724.0614%35.983465.8301%1.4465%
PrimeNet2692.028862.3188%260000120000002.89795.6374%4.926764.4431%2.1242%
GPU7227332.506264.3836%400000140000003.67534.1429%36.181565.8591%1.4756%
Difference---+145000-3645000-0.1981-0.0815%-0.1981-0.0290%-0.0290%

Known prime factors (1 factor, 75.3 bits, 0.00012789% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
58845587452355740318732678295292375.260384358252997572
22 × 7 × 317 × 6197 × 6987751
2012-11-0561976987751227.761.24522.2905

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2012-11-05T01:39:00Jwb52zClay545000103550002375.2603.477261.56.9544.061%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
1999-12-23T00:00:00ANONYMOUSv4_computers21253--2.03910e-5--
2000-02-09T00:00:00ANONYMOUSv4_computers21254--4.07821e-5--
2000-06-23T00:00:00ANONYMOUSv4_computers21256--0.000--
2001-07-17T00:00:00ANONYMOUSv4_computers21257--0.000--
2002-11-02T00:00:00ANONYMOUSv4_computers21258--0.001--
2003-07-30T00:00:00ANONYMOUSv4_computers21259--0.001--
2004-01-07T00:00:001997rj7v4_computers21260--0.003--
Missing TF 60 - 61
Missing TF 61 - 62
Missing TF 62 - 63
2008-11-04T00:00:00dmbeesonegtest02263264--0.033--
2009-03-14T20:50:00FreightyardCHESTER264265--0.063--
2009-03-15T16:05:00FreightyardCHESTER265266--0.127--
2009-03-16T12:37:00FreightyardCHESTER266267--0.254--
2009-03-17T06:58:00CPSlackerbf-st-2k3-64-2p267268--0.508--
2009-06-05T19:43:00S04803myth268269--1.016--
2011-05-07T06:36:00XyzzyManual testing269270--2.032--
2011-10-19T20:09:00ANONYMOUSmaria1270271--4.064--
2012-07-27T22:10:00Kyle AskineManual testing271272--8.127--
2012-10-08T22:42:00bcp19Manual testing272273--16.25--


ECM factoring results:
No ECM results for M58845587


Lucas-Lehmer results:
No L-L results for M58845587


PRP results:
No PRP results for M58845587


P-1 factor-bounds graph:
B1 = 545000, B2 = 10355000 (P-1 stage 2)
B1 = 545000 (P-1 stage 1)
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TF factor-bounds graph:
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Last modified: 2012-11-05T01:39:12+00:00