Sum of two squares theorem - Wikipedia

Lagrange's four-square theorem - Wikipedia

MathType on X: Lagrange's four-square theorem asserts that any positive whole number can be written as the sum of four squares of integers. Leave an example in the comments! #MathType #NumberTheory #math #

What's so interesting about squared numbers? Lagrange's Four Square Theorem

Lagrange's Four-Square Theorem -- from Wolfram MathWorld

GitHub - crteezy/java-lagrange-four-square-algorithm: Lagrange's four-square theorem algorithm using Java recursion

Number Theory Sums of Squares Part 7.

Why was this visual proof missed for 400 years? (Fermat's two square theorem)

PDF) Sums of four squares and Waring's Problem

Sum of squares, Part-2, Sum of four squares

Euler's four-square identity - Wikipedia