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What A Mean Square

Number Theory Level 4

Find the least positive integer \( n>1\) such that the arithmetic mean of the first \(n\) non-zero perfect squares is again a perfect square.

Excel in math and science

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It's hard to learn from lectures and videos

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Our wiki is made for math and science

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examples, and problems from the community.

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including olympiad champions, researchers, and professionals.

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by Rakhi Bhattacharyya

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