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楼主 |
发表于 2019-8-6 21:42
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对于素因子系数比较大的偶数,与素对数其邻近偶数素对低位值之比,接近其波动系数值:
M=2×3×5×7×11×13×17×19=9699690,k(9699690)≈4.3807 ;
G(9699690) = 124180
G(9699692) = 28588
G(9699694) = 28853
G(9699696) = 56629
G(9699698) = 31437
count = 5, algorithm = 2, working threads = 2, time use 0.004 sec (与筛选10个连续偶数的时间相同)
124180/28853=4.304 ,与4.3807之比=0.9825,相差稍微大些。
( 9699692 = 2 * 2 * 109 * 22247 ,素因子系数=108/107=1.0093,4.304*1.0093=4.344,与4.3807之比=0.9916,相差就比较小了)
M=2×3×5×7×11×13×17×19×23=223092870,k(223092870)≈4.5894 ;
G(223092860) = 610119
G(223092862) = 447410
G(223092864) = 921617
G(223092866) = 446055
G(223092868) = 445835
G(223092870) = 2044847
G(223092872) = 446240
G(223092874) = 446073
G(223092876) = 895055
G(223092878) = 451829
count = 10, algorithm = 2, working threads = 2, time use 0.040 sec
2044847/445835=4.587,与4.5894 很接近。
M=2×3×5×7×11×13×17×19×23×29=6469693230,k(6469693230)≈4.7593 ;
G(6469693220) = 12254201
G(6469693222) = 9229368
G(6469693224) = 18386086
G(6469693226) = 9475530
G(6469693228) = 9191850
G(6469693230) = 43755729
G(6469693232) = 9193332
G(6469693234) = 9191350
G(6469693236) = 18860135
G(6469693238) = 9453440
count = 10, algorithm = 2, working threads = 2, time use 1.755 sec
43755720/9191850=4.760;几乎与4.7593相同。 |
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