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Old 2014-11-29, 09:52   #1
fivemack
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Feb 2006
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Default A couple of 15e candidates

C176_2340_736 (sieve with 15e 20M-120M)
Code:
n: 18140989185283655973469449579704944039975362878755465578374551246406222559010534117329360835005049754874622232679931513368003677417541836205899311159219761141488825676850446673
# norm 5.412873e-17 alpha -8.156467 e 1.733e-13 rroots 5
skew: 74061214.95
c0: -11614402975106422326567031766203976644572145
c1: 3768462478469758386997321170863168134
c2: -280389584537199745507087803127
c3: 1470792982680576312326
c4: 40523636423372
c5: 109200
Y0: -11068471858273418658944544582716058
Y1: 2637553009393511
lpbr: 32
lpba: 32
mfbr: 64
mfba: 64
alambda: 2.6
rlambda: 2.6
alim: 120000000
rlim: 120000000
C178_8352_1764 (sieve with 15e 30M-130M)
Code:
n: 1221374054958173513692687913014902926198257768306618743306300799528730518079217410469020954302981238127804947974705279928828668125276307628173884418711081855015369740494333586289
# norm 2.892555e-17 alpha -7.575426 e 1.194e-13 rroots 5
skew: 21472469.12
c0: -9765349532908382693502598965864212287898275
c1: 1576753635557314024423683050394223878
c2: 63940605467093897023805178874
c3: -10775338015739609449707
c4: -250958777854926
c5: 5158440
Y0: -11881357437931855924380621668606388
Y1: 1129041744067997
lpbr: 32
lpba: 32
mfbr: 64
mfba: 64
alambda: 2.6
rlambda: 2.6
alim: 130000000
rlim: 130000000
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Old 2014-11-30, 07:52   #2
debrouxl
 
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Sep 2009

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Greg ?

Other potential candidates are:
* C176 from Aliquot sequence 3408;
* C181 from Aliquot sequence 3366;
* C186 from Aliquot sequence 4788 - but maybe 16e is a more efficient siever for that number ?
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