The book is now available! 1871
(another Prime Pages' Curiosity)
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+ 1871 is the smallest prime factor of (3^17-1)/2.

+ The Paris Commune of 1871 was the first attempt at a socialist society.

+ 1871!/1781! - 1 is prime. [Patterson]

+ The least prime p congruent to 11 mod 12 such that (p-1)/2 does not divide the numerator of the Bernoulli number B(p-1). [Wesolowski]

(There are 2 curios for this number that have not yet been approved by an editor.)

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