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发表于 2018-9-25 11:29
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偶数M表为两个素数和的表法数值的变化是有规律性的,因此是能够比较精确的进行计算的。
今天的日期是2018年09月25日,继续以今天的日期作为随机数,计算更大一些的百亿级别的偶数20180905×20000起的连续偶数M表为两个素数和的表法数计算值Sp(m*)以及计算值的精度 jdz。
这是四千亿以上的偶数的素对数量的计算,是比较费时间的,看看计算精度怎么样?
注:素对真值s(m)=G(M).系网友Ktprime 的高速筛选素对程序与我的素对计算程序对素对数量各自的表示形式。
G(403618500000) = 1083571759;Sp( 403618500000 *)≈ 1083477724.3 , jdz =sp(m)/s(m) ≈ 0.9999132;
G(403618500002) = 436290374; Sp( 403618500002 *)≈ 436269262.5 , jdz =sp(m)/s(m) ≈ 0.9999516;
G(403618500004) = 409356758; Sp( 403618500004 *)≈ 409315574.9 , jdz =sp(m)/s(m) ≈ 0.9998994;
G(403618500006) = 813167922; Sp( 403618500006 *)≈ 813086660.6 , jdz =sp(m)/s(m) ≈ 0.9999001;
G(403618500008) = 407819205; Sp( 403618500008 *)≈ 407801978.4 , jdz =sp(m)/s(m) ≈ 0.9999578;
G(403618500010) = 597894462; Sp( 403618500010 *)≈ 597857838.7 , jdz =sp(m)/s(m) ≈ 0.9999387;
G(403618500012) = 1127608404;Sp( 403618500012 *)≈ 1127500526.2 , jdz =sp(m)/s(m) ≈ 0.9999043;
G(403618500014) = 408343710; Sp( 403618500014 *)≈ 408308920.6 , jdz =sp(m)/s(m) ≈ 0.9999148;
G(403618500016) = 403597338; Sp( 403618500016 *)≈ 403561919.5 , jdz =sp(m)/s(m) ≈ 0.9999122;
G(403618500018) = 807195290; Sp( 403618500018 *)≈ 807108082.2 , jdz =sp(m)/s(m) ≈ 0.9998920;
G(403618500020) = 550072861; Sp( 403618500020 *)≈ 550029211.6 , jdz =sp(m)/s(m) ≈ 0.9999206;
G(403618500022) = 403990381; Sp( 403618500022 *)≈ 403950849.4 , jdz =sp(m)/s(m) ≈ 0.9999021;
G(403618500024) = 817390801; Sp( 403618500024 *)≈ 817302256.4 , jdz =sp(m)/s(m) ≈ 0.9998917;
G(403618500026) = 491319040; Sp( 403618500026 *)≈ 491283180.5 , jdz =sp(m)/s(m) ≈ 0.9999270;
G(403618500028) = 422811995; Sp( 403618500028 *)≈ 422770900.2 , jdz =sp(m)/s(m) ≈ 0.9999028;
G(403618500030) = 1076269721;Sp( 403618500030 *)≈ 1076144109.7 , jdz =sp(m)/s(m) ≈ 0.9998833;
G(403618500032) = 448473098; Sp( 403618500032 *)≈ 448433047.0 , jdz =sp(m)/s(m) ≈ 0.9999107;
G(403618500034) = 425619947; Sp( 403618500034 *)≈ 425583928.7 , jdz =sp(m)/s(m) ≈ 0.9999154;
G(403618500036) = 860998195; Sp( 403618500036 *)≈ 860915287.7 , jdz =sp(m)/s(m) ≈ 0.9999037;
G(403618500038) = 440278731; Sp( 403618500038 *)≈ 440240772.1 , jdz =sp(m)/s(m) ≈ 0.9999138;
start time =22:07:03,end time=23:01:38 ,time use = 0:54:35
上面偶数的素对数量表法数的计算式如下:
Sp( 403618500000 *) = 1/(1+ .16558 )*( 403618500000 /2 -2)*p(m) ≈ 1083477724.3 , k(m)= 2.684839
Sp( 403618500002 *) = 1/(1+ .16558 )*( 403618500002 /2 -2)*p(m) ≈ 436269262.5 , k(m)= 1.081068
Sp( 403618500004 *) = 1/(1+ .16558 )*( 403618500004 /2 -2)*p(m) ≈ 409315574.9 , k(m)= 1.014277
Sp( 403618500006 *) = 1/(1+ .16558 )*( 403618500006 /2 -2)*p(m) ≈ 813086660.6 , k(m)= 2.014815
Sp( 403618500008 *) = 1/(1+ .16558 )*( 403618500008 /2 -2)*p(m) ≈ 407801978.4 , k(m)= 1.010526
Sp( 403618500010 *) = 1/(1+ .16558 )*( 403618500010 /2 -2)*p(m) ≈ 597857838.7 , k(m)= 1.481481
Sp( 403618500012 *) = 1/(1+ .16558 )*( 403618500012 /2 -2)*p(m) ≈ 1127500526.2 , k(m)= 2.793927
Sp( 403618500014 *) = 1/(1+ .16558 )*( 403618500014 /2 -2)*p(m) ≈ 408308920.6 , k(m)= 1.011783
Sp( 403618500016 *) = 1/(1+ .16558 )*( 403618500016 /2 -2)*p(m) ≈ 403561919.5 , k(m)= 1.00002
Sp( 403618500018 *) = 1/(1+ .16558 )*( 403618500018 /2 -2)*p(m) ≈ 807108082.2 , k(m)= 2
Sp( 403618500020 *) = 1/(1+ .16558 )*( 403618500020 /2 -2)*p(m) ≈ 550029211.6 , k(m)= 1.362963
Sp( 403618500022 *) = 1/(1+ .16558 )*( 403618500022 /2 -2)*p(m) ≈ 403950849.4 , k(m)= 1.000983
Sp( 403618500024 *) = 1/(1+ .16558 )*( 403618500024 /2 -2)*p(m) ≈ 817302256.4 , k(m)= 2.025261
Sp( 403618500026 *) = 1/(1+ .16558 )*( 403618500026 /2 -2)*p(m) ≈ 491283180.5 , k(m)= 1.217391
Sp( 403618500028 *) = 1/(1+ .16558 )*( 403618500028 /2 -2)*p(m) ≈ 422770900.2 , k(m)= 1.047619
Sp( 403618500030 *) = 1/(1+ .16558 )*( 403618500030 /2 -2)*p(m) ≈ 1076144109.7 , k(m)= 2.666667
Sp( 403618500032 *) = 1/(1+ .16558 )*( 403618500032 /2 -2)*p(m) ≈ 448433047 , k(m)= 1.111209
Sp( 403618500034 *) = 1/(1+ .16558 )*( 403618500034 /2 -2)*p(m) ≈ 425583928.7 , k(m)= 1.05459
Sp( 403618500036 *) = 1/(1+ .16558 )*( 403618500036 /2 -2)*p(m) ≈ 860915287.7 , k(m)= 2.133333
Sp( 403618500038 *) = 1/(1+ .16558 )*( 403618500038 /2 -2)*p(m) ≈ 440240772.1 , k(m)= 1.090909
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