The book is now available! 9000000001
(just those submitted by Necula)
Prime Curios!
Curios: Curios Search:
 

Participate:
Share

Just showing those entries submitted by 'Necula': (Click here to show all)

+ The largest 10-digit prime with sum of digits equal to 10. Note that it is also the reverse of the smallest such number (1000000009). [Necula]




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