The book is now available! 20477
(another Prime Pages' Curiosity)
Prime Curios!
Curios: Curios Search:
 

Participate:
Share
+ If you square the first 18 prime numbers (2-61 inclusive) and add them up, the result is the prime number 20477. [Bijanki]




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