The book is now available! 39338
(another Prime Pages' Curiosity)
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+ 39338 is the smallest number not ending in zero that can be represented as the sum of the squares of two distinct primes in four different ways (39338 = 23^2 + 197^2 = 97^2 + 173^2 = 107^2 + 167^2 = 113^2 + 163^2). [Rodrigo]




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