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素数が 2 つの平方和になるのはいつですか? — ロスプログラム

なぜこの視覚的証拠が 400 年間も見逃されていたのでしょうか? (フェルマーの二平方定理)

iNT 02 10 Fermat's Two Squares Theorem (Statement)

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iNT 02 12 Fermat's Two Squares Theorem (Proof via Uniqueness of Prime Factorization)

The Shape of Prime Numbers And The Sum of Two Squares

整数論 |二乗和パート 1。

iNT 08 06 Proof of the Fermat's Two Squares Theorem Part I from the Prime Number to a Quadratic Form

Sum of two squares theorem

T8. The Sum of Two Squares Theorem || INMO, IMO, RMO.

整数論 |二乗和パート 3

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Primes as sums of squares I

Sum of two squares lecture 3

Prime number’s cool property 🤩 (Fermat’s theorem on sum of two squares)

Using Fermat's theorem ! Sum of two squares !

Number Theory | Sum of Two Squares Theorem

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