OFFSET
1,1
MATHEMATICA
First/@FactorInteger[2^128-1]
PROG
(PARI) factor(2^128 - 1)[, 1] \\ Charles R Greathouse IV, Sep 06 2016
CROSSREFS
KEYWORD
fini,full,nonn
AUTHOR
Vladimir Joseph Stephan Orlovsky, Apr 23 2010
EXTENSIONS
Edited by T. D. Noe, May 06 2010
Typo in definition corrected by Arkadiusz Wesolowski, Feb 17 2011
STATUS
approved