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A200861 Prime factors of 10^100 - 1. 2
3, 3, 11, 41, 101, 251, 271, 3541, 5051, 9091, 21401, 25601, 27961, 60101, 7019801, 182521213001, 14103673319201, 78875943472201, 1680588011350901 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Is this sequence the same as "Primes p such that 10^p - 1 divides 10^(10^100) - 10"?
LINKS
Eric Weisstein's World of Mathematics, Googol
MAPLE
sort(map(i-> i[1]$i[2], ifactors(10^100-1)[2]))[]; # Alois P. Heinz, Jan 27 2023
MATHEMATICA
Join[{3}, Transpose[FactorInteger[10^100 - 1]][[1]]]
CROSSREFS
Subsequence of A178070 except for 3.
Sequence in context: A109937 A054101 A176956 * A113892 A334283 A365110
KEYWORD
fini,full,nonn
AUTHOR
EXTENSIONS
Name changed by T. D. Noe and Arkadiusz Wesolowski, Nov 29 2011
STATUS
approved

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Last modified March 28 14:21 EDT 2024. Contains 371254 sequences. (Running on oeis4.)