is 2 75966949 - 1
has 22868331 decimal digits
takes 210.026 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
1 primality tests remaining
ResidueStatus
L-L1C24A0411C6FDF__
needs double-check
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual275100.726864.0000%640000112000004.87213.5705%105.598965.2854%1.2854%
PrimeNet2703.145561.4286%320000140000004.27075.5661%7.416163.5755%2.1469%
GPU7227450.362263.5135%500000180000005.82664.1896%56.188865.0421%1.5286%
Difference+1+50.3646+0.4865%+140000-6800000-0.9545-0.6190%+49.4100+0.2432%-0.2432%

Known prime factors:
No known factors for M75966949

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2015-04-16T10:09:00AnthonyRaisTest64000011200000---4.872--3.571%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2009-06-02T18:09:00Architects Cubedm1_17263264--0.026--
2010-10-21T18:40:00fswebfs75broad2264265--0.049--
2010-12-23T05:56:00KYOJI_KAMEIG.Prasetyo265266--0.098--
2011-05-04T04:58:00Carsten KossendeyManual testing266267--0.197--
2011-09-07T20:30:00laleraManual testing267268--0.393--
2011-09-13T17:15:00laleraManual testing268269--0.787--
2011-10-09T08:19:00laleraManual testing269270--1.574--
2012-12-19T09:33:00SWL551Manual testing270271--3.148--
2012-12-19T09:33:00SWL551Manual testing271272--6.296--
2015-04-09T21:50:00NickOfTimeManual testing272273--12.59--
2015-04-09T21:50:00NickOfTimeManual testing273274--25.18--
2015-04-09T21:50:00NickOfTimeManual testing274275--50.36--


ECM factoring results:
No ECM results for M75966949


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2015-08-16T14:54:00Ryan Propperi41C24A0411C6FDF__210.0


PRP results:
No PRP results for M75966949


P-1 factor-bounds graph:
B1 = 640000, B2 = 11200000 (P-1 stage 2)
B1 = 640000 (P-1 stage 1)
104
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104
105
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108
TF factor-bounds graph:
275
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273
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271
270
269
268
267
266
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2100
Last modified: 2015-08-16T14:54:00+00:00