The book is now available! 375
(another Prime Pages' Curiosity)
Prime Curios!
Curios: Curios Search:
 

Participate:
Share
+ A 5-smooth number whose product of prime factors equals its sum of digits, i.e., 375 = 3*5^3 and 5*3 = 3+7+5. [Pfoertner]




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