MathDB

3

Part of 1977 Canada National Olympiad

Problems(1)

Smallest natural b for which 7 + 7b + 7b^2 is a fourth power

Source: Canada National Mathematical Olympiad 1977 - Problem 3

9/29/2011
NN is an integer whose representation in base bb is 777777. Find the smallest integer bb for which NN is the fourth power of an integer.
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