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Integer Problem With An Integer Answer

Number Theory Level 2

Find the sum of all integers \(n > 1\) such that

\[\frac{2^n+1}{n^2}\]

is an integer.

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Excel in math and science

Master concepts by solving fun, challenging problems.

It's hard to learn from lectures and videos

Learn more effectively through short, interactive explorations.

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by Victor Loh

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