Is someone having an idea on how "casting out twos" are been done? I know about "casting out nines" but I try to research for "casting out twos" and saw nothing. Thanks in advance.
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Consider base $3$ – J. W. Tanner Jul 15 '20 at 10:03
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https://math.stackexchange.com/questions/3436595/ – MJD Jul 15 '20 at 10:12