The book is now available! 18518809
(another Prime Pages' Curiosity)
Prime Curios!
Curios: Curios Search:
 

Participate:
Share
+ In 1778, Euler proved that 18518809 was prime by showing that it had a single representation in the form 1848x2 + y2. A remarkable feat for his time.




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