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The Euler Totient Function Ჶ(n) : Number Theory #The #Euler #Totient #Function #Ჶ(n) #Number #Theory

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The Euler Totient Function Ჶ(n) :                                                      If n ≥ 1 , the Euler Totient Function Ჶ(n) is defined to              be the number of positive integers not exceeding n which are relatively prime to             n ;  thus ,                         Ჶ ( n ) = 𝚺 1 for 1 ≤ k ≤ n, here 𝚺 indicates that the sum is extended over                                                                       those k relatively prime to n.  For Example :      Suppose n = 1.       ...