is 2163021-1
has 49,075 decimal digits
takes 0.001 GHz-days to do one L-L test
Last-known PrimeNet details:
0 L-L tests remaining
ResidueStatus
L-LBBEEBCCD89117167double-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual2639.790371.4286%100,000,0002,000,000,0000.975515.4892%10.765786.9177%31.9177%
PrimeNet2400.000055.0000%1,80040,0000.000011.3861%0.000066.3861%11.3861%
GPU722440.000059.0909%3,00060,0000.00007.7756%0.000066.8665%7.7756%
Difference+19+9.7902+12.3377%+99,997,000+1,999,940,000+0.9754+7.7136%+10.7657+20.0512%+20.0512%

Known prime factors (2 factors, 193.9 bits, 0.11892541% known):
Remaining cofactor is not a probable-prime

GHz-days
exponentfactordigitsbits*kmin B1min B2date foundmin. TFmin. P-1normal P-1
163021142395034544936072941672373.59243673831759385623
41 × 1065215408765503
411.06522e+152009-04-0715,907278,169519,543
163021161514657084782503900552651637686154337120.2814953799114371231433390564762751
19 × 67 × 359 × 19659323 × 48099251 × 11463273841
48,099,2511.14633e+102017-04-231.136e+123.21155.5910

1 Composite Factors:
exponentprime factorscomposite factordigitsbits*
16302122998885175101108479826183235657456683536221760687
830519681
59193.873
P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2001-04-29T00:00:00ANONYMOUSv4_computers100,00010,000,000---0.003--4.036%
2002-06-02T00:00:00ANONYMOUSv4_computers32,7683,276,800---0.001--2.475%
2002-07-20T00:00:00ANONYMOUSv4_computers65,5366,553,600---0.002--3.404%
2003-02-09T00:00:00ANONYMOUSv4_computers131,07213,107,200---0.004--4.464%
2003-10-08T00:00:00ANONYMOUSv4_computers262,14426,214,400---0.008--5.644%
2009-01-15T02:51:00axnManual testing5,000,000200,000,000---0.075--10.335%
2017-04-23T22:38:16kkmrkkblmbrbkManual testing100,000,0002,000,000,0001237120.2810.9750.0011.95115.489%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
1999-11-10T00:00:00ANONYMOUSv4_computers252253--0.004--
2000-04-19T00:00:00ANONYMOUSv4_computers?254--0.015--
2001-01-14T00:00:00ANONYMOUSv4_computers?256--0.059--
2002-06-23T00:00:00ANONYMOUSv4_computers?257--0.118--
2009-01-01T00:44:00Sturle Sundegowin.ifi258259--0.236--
2009-01-22T19:55:00Sturle Sundescarpia.ifi259260--0.471--


ECM factoring results:
ECM Summary

B1B2factorcurvesGHz-days
10.00000e+0
50,0005,000,0002780.968
250,00025,000,00058710.22
1,000,000100,000,00030.209


Lucas-Lehmer results:
Exponent "163021" not found


PRP results:
dateuseridcompidcofactorsres64PRP
2017-09-21T23:46:29Oliver KruseOllaptopE57A31E8477303__?
2017-09-22T10:03:37Oliver KruseManual testingE57A31E8477303__?
2017-10-12T00:02:16kkmrkkblmbrbkc4.xlargeE57A31E8477303__no
2020-04-17T17:53:02Oliver KruseAddPrpType5
14239503454493607294167
1615146570847825039005526516376861543
4068C5C1F9A219__no


P-1 factor-bounds graph:
B1 = 100,000,000, B2 = 2,000,000,000 (stage 2)
B1 = 100,000,000 (stage 1)
B1 = 5,000,000, B2 = 200,000,000 (stage 2)
B1 = 5,000,000 (stage 1)
B1 = 262,144, B2 = 26,214,400 (stage 2)
B1 = 131,072, B2 = 13,107,200 (stage 2)
B1 = 100,000, B2 = 10,000,000 (stage 2)
B1 = 65,536, B2 = 6,553,600 (stage 2)
B1 = 262,144 (stage 1)
B1 = 32,768, B2 = 3,276,800 (stage 2)
B1 = 131,072 (stage 1)
B1 = 100,000 (stage 1)
B1 = 65,536 (stage 1)
B1 = 32,768 (stage 1)
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TF factor-bounds graph:
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Last modified: 2020-04-17T17:53:02+00:00