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Unsolved problems in number theory

  1. Sep 9, 2013 #1
    What are the most interesting examples of unsolved problems in number theory which an 18 year can understand?
     
  2. jcsd
  3. Sep 9, 2013 #2
    The Goldbach Conjecture is easy enough to understand: every even number greater than 2 is the sum of two prime numbers.
    Easy to state, fiendishly difficult to prove.
     
  4. Sep 9, 2013 #3
    A lot are referenced in the book :
    "Unsolved problems in number theory", R.K.Gay, Springer Edit.
    Much of them are easy to understand.
     
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