The book is now available! 786655453628211510631
(another Prime Pages' Curiosity)
Prime Curios!
Curios: Curios Search:
 
Participate:
                                                     7 8665545362 8211510631
+ The reverse concatenation of the first twelve triangular numbers is prime. [Gupta]

  To link to this page use http://primes.utm.edu/curios/page.php?number_id=4161



Prime Curios! © 1999-2009 (all rights reserved)