
#1
Sep913, 06:16 AM

P: 150

What are the most interesting examples of unsolved problems in number theory which an 18 year can understand?




#2
Sep913, 06:52 AM

P: 25

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. 



#3
Sep913, 10:57 AM

P: 745

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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