1. Jun 6, 2008 #1

   hadi amiri 4

   

   in how many ways we can represent 50! as the sum of two primes?

    

   hadi amiri 4, Jun 6, 2008
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3. Jun 8, 2008 #2

   huba

   

   Are you looking for a number, an approximation, a formula, or an algorithm?
   A062311, in the Encyclopedia of Integer Sequences, lists the first 13 "number of ways writing n! as a sum of two primes", that is it goes as far as 13!, it does not have a formula for a "reasonable" calculation by hand, and the last 5 terms were added as recently as 2008! (my last ! is an exclamation mark)

    

   Last edited: Jun 8, 2008

   huba, Jun 8, 2008

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