The book is now available! 33251122313
(another Prime Pages' Curiosity)
Prime Curios!
Curios: Curios Search:
 

Participate:
Share
                                                                3 3251122313
+ Prime string of five consecutive integers from 9 to 13 whereby the composite numbers are replaced by the concatenation of their prime factors (counting multiplicity) {3*3}{2*5}{11}{2*2*3}{13}. Replacing the composites by the sum of these prime factors yields yet another prime 6711713 or {6}{7}{11}{7}{13}. [De Geest]




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