The book is now available! 101111
(another Prime Pages' Curiosity)
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GIMPS has discovered a new largest known prime number: 282589933-1 (24,862,048 digits)

+ 101111 is prime when read as a base-two number. This is the last of only four primes in the first 10,000 that are both a prime when read as a base-two and a base-ten number. [Connolly]

+ The smallest prime concatenated from the binary representations of a twin prime pair. 101 (base 2) = 5 (base 10) concatenated with 111 (base 2) = 7 (base 10), with (5,7) the second twin prime pair. [Post]

+ The only six-digit prime whose digits are neither prime nor composite. [Gudipati]

+ The only six-digit anti-Yarborough prime. [Loungrides]

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




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