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What is the smallest base-10 integer that can be represented as \(12_a\) in one base and \(21_b\) in another base, where a and b are any bases larger than 2?

 Sep 23, 2019
 #1
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7 in base 10 is = 12 in base 5 and 21 in base 3.

 Sep 23, 2019
 #2
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thx so much for the quick response!

Guest Sep 23, 2019

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