The book is now available! 127
(another Prime Pages' Curiosity)
Prime Curios!
Curios: Curios Search:

Single Curio View:   (Seek other curios for this number)


The smallest odd prime number that cannot be expressed as the sum of a power of two and a prime (so it is also the smallest prime that becomes composite upon changing any one of the bits in its binary expansion). [Capelle]


  Submitted: 1999-09-02 18:40:00;   Last Modified: 2008-02-26 09:22:58.

Prime Curios! © 2000-2018 (all rights reserved)