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A216823
Prime factors of Giuga numbers A007850 with 8 or fewer prime divisors.
3
2, 3, 5, 7, 11, 13, 17, 23, 31, 41, 43, 59, 71, 103, 163, 1381, 1831, 3041, 4447, 47057, 47059, 47137, 61559, 67213, 138683, 713863, 775807, 2861051, 28282147, 29133437, 2259696349, 3892535183, 110725121051, 1456230512169437
OFFSET
1,1
COMMENTS
See A007850 for comments, references, and links.
EXAMPLE
30 = 2*3*5 is a Giuga number, so 2, 3, 5 are members.
CROSSREFS
KEYWORD
nonn,fini,full
AUTHOR
Jonathan Sondow, Sep 17 2012
STATUS
approved