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A176689
Prime factors of 2^128 - 1.
0
3, 5, 17, 257, 641, 65537, 274177, 6700417, 67280421310721
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
EXTENSIONS
Edited by T. D. Noe, May 06 2010
Typo in definition corrected by Arkadiusz Wesolowski, Feb 17 2011
STATUS
approved