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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 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

See A007850 for comments, references, and links.

LINKS

Table of n, a(n) for n=1..34.

EXAMPLE

30 = 2*3*5 is a Giuga number, so 2, 3, 5 are members.

CROSSREFS

Cf. A007850, A216824, A236434.

Sequence in context: A316412 A100553 A175584 * A293199 A268812 A283562

Adjacent sequences:  A216820 A216821 A216822 * A216824 A216825 A216826

KEYWORD

nonn,fini,full

AUTHOR

Jonathan Sondow, Sep 17 2012

STATUS

approved

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Last modified October 22 18:45 EDT 2021. Contains 348175 sequences. (Running on oeis4.)