The book is now available! 17717171
(another Prime Pages' Curiosity)
Prime Curios!
Curios: Curios Search:

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


Formed from 17 followed by its reversal repeated three times. Repeating the reversal before 17, we obtain another prime: 71717117. Taking the reversal of 17 and and using the same process, two new primes are yielded: 71171717, 17171771. Note that the reversal must be repeated at least three times with a number to give prime. [Silva]


  Submitted: 2010-05-04 20:12:26;   Last Modified: 2010-05-05 06:53:51.

Prime Curios! © 2000-2018 (all rights reserved)