回复:It can be proven that there is an infinite amount of prime nu

回答: 质数的穷尽novtim22010-05-10 20:24:13

您99分.如您是学的数学,那就...,N!=(Pa1)^b1*...(Pam)^bm
N!+1=(Pc1)^d1*...(Pcn)^dn.We can't get Pcn>Pam.
Let p1=2 p2=3...pj, pj is largest prime,
Let n=p1*p2*p3*p4*...pj+1,if n prime,n>pj,if n is not prime,It can be divided by P,it can't be by p1,p2,...pj,so P>pj....

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Euclid number -guest007- 给 guest007 发送悄悄话 (4 bytes) () 05/16/2010 postreply 19:24:38

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