is 2 160308361 - 1
has 48257626 decimal digits
takes 1,052.024 GHz-days to do one PRP test
Last-known PrimeNet details:
-unknown- L-L tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP34E755D5F90FB4B1double-checked

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual279763.735564.5570%5000000150000000122.75165.4307%886.487169.9876%7.8255%
PrimeNet27423.865762.1622%6500003600000024.51195.3530%48.377667.5151%5.3530%
GPU72278381.867264.1026%10000003600000027.66093.8993%409.528268.0019%3.8993%
Difference+1+381.8683+0.4544%+4000000+114000000+95.0906+1.5314%+476.9589+1.9858%+1.9858%

Known prime factors:
No known factors for M160,308,361

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2020-12-04T11:42:00Roland ClarksonManual testing5000000150000000---122.8--5.431%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2010-06-29T04:33:00Donna NobleATH2-630-temp263264--0.012--
2011-02-02T04:28:00UngelovendeGammali7_2264265--0.023--
2013-03-02T18:04:00Richard8F02265266--0.047--
2015-05-02T22:07:00sasaki3mate_ma2266267--0.093--
2016-03-02T06:07:37XZTManual testing267268--0.186--
2017-03-21T21:01:30Xolotlriptide-cpu-01268269--0.373--
2017-12-03T08:58:33Luigi R.Manual testing269270--0.746--
2017-12-25T17:13:21Oliver KruseManual testing270276--93.98--
2020-12-04T04:09:57Roland ClarksonManual testing276277--95.47--
2020-12-04T04:09:57Roland ClarksonManual testing277278--190.9--
2020-12-04T04:09:57Roland ClarksonManual testing278279--381.9--


ECM factoring results:
Exponent "160308361" not found


Lucas-Lehmer results:
Exponent "160308361" not found


PRP results:
dateuseridcompidcofactorsres64PRP
2020-12-09T06:19:35Roland ClarksonManual testing34E755D5F90FB4B1no


P-1 factor-bounds graph:
B1 = 5000000, B2 = 150000000 (stage 2)
B1 = 5000000 (stage 1)
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109
TF factor-bounds graph:
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2100
Last modified: 2020-12-09T06:19:35+00:00