is 2 85739851 - 1
has 25810267 decimal digits
takes 276.154 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
1 primality tests remaining
ResidueStatus
L-LA49A87238D2C63__
needs double-check
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual276178.493464.4737%670000113900005.85673.3155%184.350165.6515%1.1779%
PrimeNet2715.575961.9718%360000170000005.91535.3868%11.491264.0203%2.0485%
GPU7227589.245664.0000%550000190000007.26313.9483%96.508865.4214%1.4214%
Difference+1+89.2477+0.4737%+120000-7610000-1.4064-0.6329%+87.8413+0.2301%+0.2301%

Known prime factors:
No known factors for M85739851

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2018-04-06T22:41:30boincPlayer167000011390000---5.857--3.315%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2010-11-28T16:50:00Architects Cubedm1_55264265--0.044--
2013-03-04T02:17:00wangyun183Manual testing265266--0.087--
2013-03-05T10:47:00timc995dl580_g5266267--0.174--
2013-03-07T16:45:00ANONYMOUS267268--0.349--
2013-03-12T13:08:00ANONYMOUS268269--0.697--
2013-03-19T08:28:00OS1L3269270--1.394--
2014-01-17T08:17:00GrunwalderGIMPcompute-0-3270271--2.789--
2017-03-08T02:55:20Judge HaleManual testing271272--5.578--
2017-03-08T02:55:20Judge HaleManual testing272273--11.16--
2017-05-05T22:48:31ANONYMOUSManual testing273274--22.31--
2017-10-08T15:59:06TheJudgerManual testing274275--44.62--
2017-10-08T15:59:06TheJudgerManual testing275276--89.25--


ECM factoring results:
No ECM results for M85739851


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2019-04-13T03:10:01S00030op9020-usffA49A87238D2C63__276.2


PRP results:
No PRP results for M85739851


P-1 factor-bounds graph:
B1 = 670000, B2 = 11390000 (P-1 stage 2)
B1 = 670000 (P-1 stage 1)
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TF factor-bounds graph:
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Last modified: 2019-04-13T03:10:01+00:00