The book is now available! 3511
(another Prime Pages' Curiosity)
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+ The largest known Wieferich prime: 35112 divides 23511 - 1 - 1.

+ The only known Wieferich emirp. [Loungrides]

+ The smallest emirp formed by concatenating the ordered factors of a sphenic number (i.e., 165 = 3*5*11). [Loungrides]

(There is one curio for this number that has not yet been approved by an editor.)

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