The book is now available! 5581
(another Prime Pages' Curiosity)
Prime Curios!
Curios: Curios Search:
 
Participate:
+ 5581*phi(5581)+1 is prime, where phi is the Euler function. [Russo]

  To link to this page use http://primes.utm.edu/curios/page.php?number_id=2194



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