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• problem on number theory
  Prove that for any integer n n7+7 is not a perfect square i have proved it for all cases except for n of the form - 7k+1 plz help . ...
  0·10· #Mathematics#Olympiad Stuff
  replied2009-02-19 09:19:06
• Prove
  How many ordered integral pairs (m,n) are there such that 3^m+2^n is the square of an integer? ...
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• problem on number theory
  Prove that for any integer n n7+7 is not a perfect square i have proved it for all cases except for n of the form - 7k+1 plz help . ...
  0·10· #Mathematics#Olympiad Stuff
  replied2009-02-17 09:31:44