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LAGRANGE'S FOUR SQUARE THEOREM Theorems, Lagrange theorem, Number theory

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Lagrange's four-square theorem

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Lagrange's four-square theorem - Wikiwand

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Pythagorean Theorem

CodeChef - Lagrange's four-square theorem, also known as Bachet's conjecture, states that every natural number can be represented as the sum of four integer squares. This theorem was proven by Joseph Louis