The book is now available! 172
(another Prime Pages' Curiosity)
Prime Curios!
Curios: Curios Search:

GIMPS has discovered a new largest known prime number: 282589933-1 (24,862,048 digits)

Single Curio View:   (Seek other curios for this number)


172 = phi(1+7+2) * prime(1*7*2). It is the only known number (up to 10^8) with this property. [Firoozbakht]


  Submitted: 2009-04-23 11:14:30;   Last Modified: 2009-04-23 15:47:02.

Prime Curios! © 2000-2019 (all rights reserved)  privacy statement