The book is now available! 1011
(another Prime Pages' Curiosity)
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+ 1011 in base b is prime for all b < 10 with the exception of b=7. [Necula]

+ The smallest reflectable invertible semiprime and also the smallest reflectable invertible emirpimes. [Capelle]

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




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