PuzzleUp
Username:      Password:        
New User   Forgot?

 Archive

No: 17       November 14, 2012


Prime Sums

Prime Sums

All of the digits of a number are different. The sums of all neighboring three digits of this number are prime numbers. What is the largest number having these properties?


Popularity: 84.4 %     Difficulty: 50.0 %    


Home | About | Rules | Archive | Scoreboard | Links

© 2004-2014 HALICI Informatics and Software Co.