is 268521-1
has 20,627 decimal digits
takes 0.000 GHz-days to do one L-L test
Last-known PrimeNet details:
-unknown- L-L tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actualunknown100,000,0003,042,014,761,758352.0013196.9940%352.0013196.9940%139.4940%
PrimeNet2400.000057.5000%70010,0000.00005.5942%0.000063.0942%5.5942%
GPU722440.000061.3636%50010,0000.00002.2316%0.000063.5952%2.2316%
Difference-440.0000-61.3636%+99,999,500+3,042,014,751,758+352.0013+194.7624%+352.0012+133.3988%+133.3988%

Known prime factors (3 factors, 238.5 bits, 0.34806064% known):
Remaining cofactor is not a probable-prime

GHz-days
exponentfactordigitsbits*kmin B1min B2date foundmin. TFmin. P-1normal P-1
6852136956680335061911651.71526967411695
5 × 7 × 17 × 107 × 613 × 691
6136912014-04-230.00481.310e-62.648e-6
68521367635155331614631755.029268264587011
107 × 491 × 5106203
4915,106,2032009-06-200.13480.00060.0011
68521458065088818222104726700963973024339459340131.75133425160813343508174625367695525776
24 × 7 × 23 × 227 × 5813 × 19192421 × 22297123 × 22978563497
22,297,1232.29786e+102016-12-232.140e+122.70224.9633

4 Composite Factors:
exponentprime factorscomposite factordigitsbits*
6852113586574915521313092785881311743333106.744
6852116928565060106776057064316195191042133251446779721
425263
56183.466
6852116840083007967693523999880204563841014445016800229
0169559
57186.780
6852162235356454136987711273650320443111305407115071697
2625420593270666239769
72238.495
P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2016-11-09T02:11:52kkmrkkblmbrbkManual testing100,000,0002,000,000,00012---0.432--40.075%
2016-12-24T02:26:35kkmrkkblmbrbkManual testing100,000,0003,042,014,761,75840131.751352.00.000704.059.082%


Trial Factoring results:
Exponent "68521" not found


ECM factoring results:
ECM Summary

B1B2factorcurvesGHz-days
10.00000e+0
11,0001,100,000140.005
50,0005,000,0002740.418
250,00025,000,0005854.467
1,000,000100,000,0002557.789


Lucas-Lehmer results:
Exponent "68521" not found


PRP results:
dateuseridcompidcofactorsres64PRP
2017-09-21T20:17:32Oliver KruseOllaptop
3695668033506191
36763515533161463
4580650888182221047267009639730243394593
40C0DEEDCF7A7AB5no
2017-09-21T21:29:50Oliver KruseManual testing
3695668033506191
36763515533161463
4580650888182221047267009639730243394593
40C0DEEDCF7A7AB5no
2017-10-02T16:52:19kkmrkkblmbrbkManual testing
3695668033506191
36763515533161463
4580650888182221047267009639730243394593
40C0DEEDCF7A7A__no
2017-12-07T03:32:55ATHxps
3695668033506191
36763515533161463
4580650888182221047267009639730243394593
40C0DEEDCF7A7A__no
2020-04-17T13:52:05Oliver KruseAddPrpType5
3695668033506191
36763515533161463
4580650888182221047267009639730243394593
E3F94C7866D626__no


P-1 factor-bounds graph:
B1 = 100,000,000, B2 = 3,042,014,761,758 (stage 2)
B1 = 100,000,000, B2 = 2,000,000,000 (stage 2)
B1 = 100,000,000 (stage 1)
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TF factor-bounds graph:
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Last modified: 2020-04-17T13:52:05+00:00