is 2 67058347 - 1
has 20186574 decimal digits
takes 169.509 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
1 primality tests remaining
ResidueStatus
L-L785BE576022FA1__
needs double-check
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual275114.108265.3333%725000161312505.73393.8455%119.842166.6664%1.3331%
PrimeNet2703.563362.8571%280000130000003.56645.3195%7.129764.8329%1.9758%
GPU7227457.052864.8649%450000150000004.55493.9288%61.607766.2453%1.3804%
Difference+1+57.0554+0.4685%+275000+1131250+1.1789-0.0833%+58.2344+0.4212%+0.4212%

Known prime factors:
No known factors for M67058347

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2013-09-02T03:45:00swildnerultra72500016131250---5.734--3.846%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2008-12-11T07:40:00Wojciech FlorekManual testing21264--0.053--
2009-03-31T09:27:00Loïc EvannoC8CDB759B264265--0.056--
2009-03-31T17:25:00TheMasterofDomeCorei7_uber_pc265266--0.111--
2009-04-06T14:05:00Snyyck266267--0.223--
2009-12-24T13:17:00marvikvc1267268--0.446--
2010-02-28T21:33:00root_slaterf1_rackserver268269--0.891--
2012-02-24T12:35:00RichardFX5000_1269270--1.783--
2012-07-26T07:49:00ANONYMOUSSrvrUID270271--3.566--
2014-02-22T22:39:00Jerry HallettManual testing271272--7.132--
2014-02-22T22:39:00Jerry HallettManual testing272273--14.26--
2014-02-22T22:39:00Jerry HallettManual testing273274--28.53--
2015-05-24T14:57:00XyzzyManual testing274275--57.06--


ECM factoring results:
No ECM results for M67058347


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2015-06-17T12:37:00Brian LenhartGA-Z97X-SLI785BE576022FA1__169.5


PRP results:
No PRP results for M67058347


P-1 factor-bounds graph:
B1 = 725000, B2 = 16131250 (P-1 stage 2)
B1 = 725000 (P-1 stage 1)
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TF factor-bounds graph:
275
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2100
Last modified: 2015-06-17T12:37:00+00:00