Linked from

The 111 pages that link to Leonhard Euler, each with the reason it gives.

• Sophie Germain's identityRelated: Euler established an earlier factorization of a sum of fourth powers, a related precursor.

• Theoretical mechanicsRelated: His equations made rotational dynamics mathematically tractable.

• Degen's eight-square identityRelated: His four-square identity is a prominent predecessor in the history of product formulas.

• Divergence of the sum of the reciprocals of the primesRelated: Euler first established the divergence using a product over primes and the harmonic series.

• Goldbach–Euler theoremRelated: His reply reformulated Goldbach’s proposal into the modern even-number conjecture.

• Integral test for convergenceRelated: Euler studied infinite series, including the harmonic series whose divergence the test makes transparent.

• Meusnier's theoremRelated: Euler’s formula for normal curvature complements Meusnier’s theorem.

• Music and mathematicsRelated: Euler proposed a numerical account relating harmonic complexity to perceived consonance.