is 2 58849339 - 1
has 17715417 decimal digits
takes 130.735 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-LC83B05280A7CA997double-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual27465.011264.8649%555000113775003.68713.7618%68.698366.1866%1.3217%
PrimeNet2692.028762.3188%260000120000002.89795.6374%4.926664.4431%2.1242%
GPU7227332.504164.3836%400000140000003.67534.1430%36.179465.8591%1.4756%
Difference+1+32.5071+0.4813%+155000-2622500+0.0118-0.3812%+32.5189+0.3274%+0.3274%

Known prime factors:
No known factors for M58849339

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2012-11-11T17:11:00TheJudgerManual testing55500011377500---3.687--3.762%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
1999-12-23T00:00:00ANONYMOUSv4_computers21253--2.03897e-5--
2000-02-09T00:00:00ANONYMOUSv4_computers21254--4.07795e-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--
2008-11-04T20:49:00Sturle Sundeiago.ifi263264--0.033--
2008-11-18T00:00:00ComputerraRUv4_computers264265--0.063--
2008-11-09T12:26:00ComputerraRUv4_computers21266--0.251--
2008-11-12T18:43:00ComputerraRUv4_computers21266--0.251--
2008-11-18T00:00:00ComputerraRUv4_computers265266--0.127--
2008-11-29T21:25:00ComputerraRUv4_computers21267--0.505--
2008-12-09T00:00:00ComputerraRUv4_computers266267--0.254--
2009-03-14T11:39:00dmbleess2008desktop267268--0.508--
2009-06-06T04:25:00Sturle Sundehummel.ifi268269--1.016--
2011-05-06T02:51:00XyzzyManual testing269270--2.032--
2012-04-10T07:50:00delta_tManual testing270272--12.19--
2012-10-05T22:24:00BigBrotherManual testing272273--16.25--
2018-05-18T00:50:11Mark RoseManual testing273274--32.51--


ECM factoring results:
No ECM results for M58849339


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2013-01-02T16:17:00Brian BarbagalloIntelHomeC83B05280A7CA997130.7
2020-05-10T10:25:24yepengyuhi_2_64core_x64C83B05280A7CA997130.7


PRP results:
No PRP results for M58849339


P-1 factor-bounds graph:
B1 = 555000, B2 = 11377500 (P-1 stage 2)
B1 = 555000 (P-1 stage 1)
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TF factor-bounds graph:
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Last modified: 2020-05-10T10:25:24+00:00