The book is now available! 7507
(another Prime Pages' Curiosity)
Prime Curios!
Curios: Curios Search:
 

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

 

The difference of the numbers formed by descending concatenation of the composite digits and the ascending concatenation of the prime digits: 9864-2357. [Silva]

 

  Submitted: 2009-05-09 20:58:47;   Last Modified: 2009-05-09 22:21:38.



Prime Curios! © 2000-2017 (all rights reserved)