The book is now available! 323
(another Prime Pages' Curiosity)
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+ The smallest palindrome whose factors are twin primes (17 * 19). [Russo]

+ 323 doubled up (i.e., 323323) has five consecutive prime factors which when squared and summed, yield 989, another palindrome! [De Geest]

+ 323 is the smallest Lucas pseudoprime. [Terr]

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