The book is now available! 191
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191 is the smallest prime such that the sum of the reciprocals of the primes less than or equal to it begins with the digits of the next prime. Thus, 1/2 + ... + 1/191 = 1.9337.... [Rupinski]


  Submitted: 2002-09-13 16:56:10;   Last Modified: 2008-01-30 11:28:00.

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