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N阶三生素数束有无穷多

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发表于 2012-1-5 11:11 | 显示全部楼层

N阶三生素数束有无穷多

下面引用由柳林2012/01/04 00:00pm 发表的内容:
N阶三生素数束有无穷多
N阶三生素数束有无穷多,是一个猜想。它是根据数学家提出的N阶孪生素数束(即天山草的N家村)有无穷多提出来的。
由于本人水平所限,只在3000万以内找到39组两阶三生素数束。
现将这39组 ...
正确,《概率素数论》可给出定量分析结果
发表于 2012-1-5 12:18 | 显示全部楼层

N阶三生素数束有无穷多

[这个贴子最后由天山草在 2012/01/05 00:25pm 第 1 次编辑]
下面引用由柳林2012/01/05 11:11am 发表的内容:
我费好大劲,才在1亿以内找到1组,间距还好大。它是:
97939483||97939487||97939489
97939573||97939577||97939579...

楼主找到的那组三家村的结构是 p1,p1+4,p1+6;p2,p2+4,p2+6;p3,p3+4,p3+6,这种结构的三家村在 10 亿以内有 11 组,楼主找到的是 1 亿以内的那一组:
 
97939483,97939487,97939489,97939573,97939577,97939579,97939603,97939607,97939609。总间距 126
111833437,111833441,111833443,111833467,111833471,111833473,111833503,111833507,111833509。总间距 72
182320777,182320781,182320783,182320807,182320811,182320813,182320837,182320841,182320843。总间距 66
208294783,208294787,208294789,208294813,208294817,208294819,208294837,208294841,208294843。总间距 60
261318763,261318767,261318769,261318787,261318791,261318793,261318817,261318821,261318823。总间距 60
424513387,424513391,424513393,424513417,424513421,424513423,424513483,424513487,424513489。总间距 102
518934037,518934041,518934043,518934103,518934107,518934109,518934127,518934131,518934133。总间距 96
619948933,619948937,619948939,619948957,619948961,619948963,619948993,619948997,619948999。总间距 66
686048677,686048681,686048683,686048743,686048747,686048749,686048767,686048771,686048773。总间距 96
699426487,699426491,699426493,699426517,699426521,699426523,699426583,699426587,699426589。总间距 102
861974203,861974207,861974209,861974227,861974231,861974233,861974257,861974261,861974263。总间距 60
找到 11 组。
发表于 2012-1-5 12:55 | 显示全部楼层

N阶三生素数束有无穷多

10 亿以内、结构是 p1,p1+2,p1+6;p2,p2+4,p2+6;p3,p3+4,p3+6 的三生素数三家村共有 14 组:
43178687,43178689,43178693,43178713,43178717,43178719,43178743,43178747,43178749。总间距 62
160104641,160104643,160104647,160104667,160104671,160104673,160104727,160104731,160104733。总间距 92
202281137,202281139,202281143,202281193,202281197,202281199,202281223,202281227,202281229。总间距 92
233213417,233213419,233213423,233213437,233213441,233213443,233213503,233213507,233213509。总间距 92
233811437,233811439,233811443,233811463,233811467,233811469,233811493,233811497,233811499。总间距 62
444343787,444343789,444343793,444343813,444343817,444343819,444343843,444343847,444343849。总间距 62
457050101,457050103,457050107,457050127,457050131,457050133,457050157,457050161,457050163。总间距 62
464870711,464870713,464870717,464870737,464870741,464870743,464870767,464870771,464870773。总间距 62
499906697,499906699,499906703,499906717,499906721,499906723,499906747,499906751,499906753。总间距 56
506156471,506156473,506156477,506156503,506156507,506156509,506156527,506156531,506156533。总间距 62
512007257,512007259,512007263,512007277,512007281,512007283,512007313,512007317,512007319。总间距 62
699427451,699427453,699427457,699427507,699427511,699427513,699427537,699427541,699427543。总间距 92
736836911,736836913,736836917,736836937,736836941,736836943,736836973,736836977,736836979。总间距 68
870620477,870620479,870620483,870620497,870620501,870620503,870620533,870620537,870620539。总间距 62
找到 14 组。
发表于 2012-1-5 13:07 | 显示全部楼层

N阶三生素数束有无穷多

[这个贴子最后由天山草在 2012/01/05 02:53pm 第 1 次编辑]

10 亿以内、结构是 p1,p1+2,p1+6;p2,p2+2,p2+6;p3,p3+4,p3+6 的三生素数三家村共有 9 组:
2562941,2562943,2562947,2562977,2562979,2562983,2563003,2563007,2563009。总间距 68
82046141,82046143,82046147,82046177,82046179,82046183,82046197,82046201,82046203。总间距 62
176960417,176960419,176960423,176960447,176960449,176960453,176960473,176960477,176960479。总间距 62
197885291,197885293,197885297,197885327,197885329,197885333,197885377,197885381,197885383。总间距 92
339837077,339837079,339837083,339837101,339837103,339837107,339837133,339837137,339837139。总间距 62
364917191,364917193,364917197,364917227,364917229,364917233,364917247,364917251,364917253。总间距 62
653497847,653497849,653497853,653497877,653497879,653497883,653497903,653497907,653497909。总间距 62
669640457,669640459,669640463,669640481,669640483,669640487,669640507,669640511,669640513。总间距 56
681630161,681630163,681630167,681630197,681630199,681630203,681630217,681630221,681630223。总间距 62
找到 9 组。
 楼主| 发表于 2012-1-5 13:15 | 显示全部楼层

N阶三生素数束有无穷多

谢谢天山草先生提供的数据。
发表于 2012-1-9 08:50 | 显示全部楼层

N阶三生素数束有无穷多

三生素数有两种排列形式:p,p+2,p+6;和p,p+4,p+6。从组合学上应该有4种2阶三生素数束AA,AB,BA,BB。其中最短的一组是(4,2),4,(2,4);即p,p+4,P+6,p+10,p+12,p+16,这也是最密的六生素数。它在某范围内的数量可以在下面的连接中查到。
发表于 2012-1-9 09:01 | 显示全部楼层

N阶三生素数束有无穷多

与上楼排列相同的,下一种比较短的2阶3生素数的距离是34,比起最短的差了18,(4,2),,22,(2,4);即p,p+4,P+6,p+28,p+30,p+34.
另一种排列形式最短距离是26,(2,4),,14,(4,2);即p,p+2,P+6,p+20,p+24,p+26.
这只是AB,BA这两种排列,如果要求是纯2阶3生素数的话,应该是AA或BB的形式。
发表于 2012-1-9 12:54 | 显示全部楼层

N阶三生素数束有无穷多

3阶3生素数束(3生素数的3家村)最短距离是46,有两种排列形式:(4,2),4,(2,4),24,(2,4);另一种(4,2),24,(4,2),4,(2,4)。
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