the function f is defined for all positive intergers n by the following rules:f(n) is the number of positive intergers of which is less than n and has no positive factor in common with n other than 1.If p is any prime number the f(p)=?
the function f is defined for all positive intergers n by the following rules:f(n) is the number of positive intergers of which is less than n and has no positive factor in common with n other than 1.If p is any prime number the f(p)=?
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发表于 2009-1-11 12:25:00
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