is 2 1466099 - 1
has 441340 decimal digits
takes 0.056 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-L0FBBB80B7BF1E102double-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual26720.267368.6567%2500000625000000.31947.4152%20.586770.9809%2.3242%
PrimeNet2560.006562.5000%70001200000.00072.9103%0.007363.5914%1.0914%
GPU722600.104865.0000%65001000000.00061.4463%0.105465.5062%0.5062%
Difference+7+20.1626+3.6567%+2493500+62400000+0.3187+5.9689%+20.4813+5.4747%+5.4747%

Known prime factors (1 factor, 95.8 bits, 0.00653440% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
1466099690057522087859614005725707432995.80123533796902114373381529
3 × 11 × 55763 × 12788862878075651
2016-09-1655763127888628780756518.327e+938,574,58572,046,583

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2003-09-29T00:00:00Team Prime Ribv4_computers20000265000---0.002--0.956%
2009-04-25T10:19:00axnManual testing80000016000000---0.090--5.263%
2015-05-23T19:25:00alpertronManual testing200000060000000---0.286--7.237%
2016-08-24T07:27:36Bruno Victal5820K-factoring25000006250000012---0.319--7.415%
2016-08-27T10:54:02Bruno VictalManual testing25000006250000012---0.319--7.415%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2001-10-06T00:00:00ANONYMOUSv4_computers21257--0.013--
2003-07-30T00:00:00ANONYMOUSv4_computers21258--0.026--
2016-02-23T16:28:33Mark RoseManual testing258260--0.079--
2010-05-07T14:50:00Architects Cubeda3_bu2260261--0.105--
2016-02-23T16:28:33Mark RoseManual testing261262--0.210--
2011-04-05T20:59:00GrunwalderGIMPManual testing21263--1.089--
2016-02-23T16:28:33Mark RoseManual testing262263--0.670--
2015-04-01T00:53:00snme2pm1Manual testing263264--1.339--
2015-04-01T00:53:00snme2pm1Manual testing264265--2.549--
2015-09-20T20:59:00ramgeisManual testing265266--5.097--


ECM factoring results:

Old Calculation Method

Total ECM effort:25.584 GHz-days
Estimated T-Level:25.391
DigitsB1CurvesCompleteFacMiss
2011000301 / 1003.0104.855%
2550000301 / 2801.07534.064%
3025000050 / 6400.07892.479%

New Calculation Method

Total ECM effort:25.584 GHz-days
Estimated T-Level:25.391
DigitsB1CompleteFacMiss
201100012.2630.000%
25500001.35725.749%
302500000.11389.315%
3510000000.00899.236%


ECM Summary

B1B2factorcurvesGHz-days
50000500000024811.76
50000500000030.142
250000350000005013.68


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
1999-05-09T00:00:00ANONYMOUSv4_computers0FBBB80B7BF1E1020.056
2015-06-27T00:56:00MadPooManual testing0FBBB80B7BF1E1020.056


PRP results:
dateuseridcompidcofactorsres64PRP
2017-10-01T04:03:15Oliver KruseGTX-0
69005752208785961400572570743
8141A301FA7B38__no
2017-10-28T00:37:37kkmrkkblmbrbkc4.xlarge
69005752208785961400572570743
8141A301FA7B38__no


P-1 factor-bounds graph:
B1 = 2500000, B2 = 62500000 (P-1 stage 2)
B1 = 2000000, B2 = 60000000 (P-1 stage 2)
B1 = 2500000 (P-1 stage 1)
B1 = 2000000 (P-1 stage 1)
B1 = 800000, B2 = 16000000 (P-1 stage 2)
B1 = 800000 (P-1 stage 1)
B1 = 20000, B2 = 265000 (P-1 stage 2)
B1 = 20000 (P-1 stage 1)
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TF factor-bounds graph:
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Last modified: 2021-12-03T11:50:28+00:00