is 2 89067409 - 1
has 26811962 decimal digits
takes 300.273 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
1 primality tests remaining
ResidueStatus
L-L85BDFAE30956EA__
needs double-check
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual276171.824864.4737%725000143187507.16453.5285%178.989465.7272%1.2536%
PrimeNet2715.367661.9718%360000170000006.19165.4115%11.559264.0297%2.0579%
GPU7227585.911464.0000%600000200000008.09994.0520%94.011365.4587%1.4587%
Difference+1+85.9134+0.4737%+125000-5681250-0.9353-0.5234%+84.9781+0.2685%+0.2685%

Known prime factors:
No known factors for M89067409

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2018-10-10T15:35:45S485122i7-47717250001431875012---7.165--3.529%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2010-11-03T16:30:00Architects Cubedtcu_1264265--0.042--
2013-03-15T11:45:00GrunwalderGIMPcompute-0-7265266--0.084--
2013-03-20T20:07:00SRS TechnologyManual testing266267--0.168--
2013-03-20T20:07:00SRS TechnologyManual testing267268--0.336--
2013-03-20T20:07:00SRS TechnologyManual testing268269--0.671--
2013-03-20T20:07:00SRS TechnologyManual testing269270--1.342--
2013-03-20T20:07:00SRS TechnologyManual testing270271--2.685--
2013-03-20T20:07:00SRS TechnologyManual testing271272--5.370--
2017-08-18T19:02:41ANONYMOUSManual testing272273--10.74--
2017-08-18T19:02:41ANONYMOUSManual testing273274--21.48--
2018-09-12T13:41:22RichD0Manual testing274275--42.96--
2018-09-16T16:10:06Strolling JellyfishManual testing275276--85.91--


ECM factoring results:
No ECM results for M89067409


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2019-02-10T13:46:11Stephan Gruppnewgrupp52085BDFAE30956EA__300.3


PRP results:
No PRP results for M89067409


P-1 factor-bounds graph:
B1 = 725000, B2 = 14318750 (P-1 stage 2)
B1 = 725000 (P-1 stage 1)
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TF factor-bounds graph:
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Last modified: 2019-02-10T13:46:11+00:00