The book is now available! 99999...23133 (45-digits)
(just those submitted by Poo Sung)
Prime Curios!
Curios: Curios Search:
 

Participate:
Share
                           99999 9999888888 8877777776 6666655555 4444223133

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

+ The greatest semiprime composed of one 1, two 2's, ..., nine 9's. That is, 999999999888888887777777666666555554444223133/3 = 333333333296296295925925888888851851481407711 is prime. [Poo Sung]




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