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SUMUS (Posted on 2012-04-21) Difficulty: 3 of 5
Let S(k) = 2 + 3 + 5 + 7 + 11 + 13 ... + p(k) , p(k) being the k-th prime.
For what values of k is S(k) a palindrome?

Please ignore the trivial answers k =1 and k=2.
Go as high as you can.

No Solution Yet Submitted by Ady TZIDON    
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  Subject Author Date
Solutioncomputer solutionCharlie2012-04-21 14:12:08
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