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发表于 2020-6-23 17:56
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使用连乘式的计算偶数素对的下界 值:
G(7000000000000) = 9070480173,
inf( 7000000000000 )≈ 9046520257.5 , Δ≈-0.002642,infS(m) = 5654075160.92 , k(m)= 1.6
G(7000000000002) = 11349453514
inf( 7000000000002 )≈ 11319655486.4 , Δ≈-0.002626,infS(m) = 5654075160.92 , k(m)= 2.00203
G(7000000000004) = 6298963281
inf( 7000000000004 )≈ 6282305734.4 , Δ≈-0.002644,infS(m) = 5654075160.92 , k(m)= 1.11111
计算式:
inf( 7000000000000 ) = 1/(1+ .178 )*( 7000000000000 /2 -2)*p(m) ≈ 9046520257.5
inf( 7000000000002 ) = 1/(1+ .178 )*( 7000000000002 /2 -2)*p(m) ≈ 11319655486.4
inf( 7000000000004 ) = 1/(1+ .178 )*( 7000000000004 /2 -2)*p(m) ≈ 6282305734.4
time start =15:23:18 ,time end =16:23:47
连乘式计算速度比采用对数形式慢多了,3个偶数用了1个小时。
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