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Pre-AlgebraSuperchallengeDivisibility

Divisibility · Superchallenge problem

Find the single digit dd for which the five-digit number 1 d 5 d 4‾\overline{1\,d\,5\,d\,4} (digits 1, d, 5, d, 41,\,d,\,5,\,d,\,4) is divisible by 1212.