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A003020
Largest prime factor of the "repunit" number 11...1 (cf.
A002275
)
(Formerly M4790)
+0
11
11, 37, 101, 271, 37, 4649, 137, 333667, 9091, 513239, 9901, 265371653, 909091, 2906161, 5882353, 5363222357, 333667, 1111111111111111111, 27961, 10838689, 513239, 11111111111111111111111, 99990001, 182521213001, 1058313049
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Maintained by
N. J. A. Sloane
(
njas@research.att.com
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Last modified December 2 11:54 EST 2009. Contains 167921 sequences.
AT&T Labs Research
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