Lagrange's Four Square Theorem/Examples/23

Example of Use of Lagrange's Four Square Theorem

$23$ can be expressed as the sum of $4$ squares thus:

$23 = 3^2 + 3^2 + 2^2 + 1^2$

Sources

• 1998: David Nelson: The Penguin Dictionary of Mathematics (2nd ed.) ... (previous) ... (next): Lagrange's theorem: 1. (J.L. Lagrange, 1772)
• 2008: David Nelson: The Penguin Dictionary of Mathematics (4th ed.) ... (previous) ... (next): Lagrange's theorem: 1. (J.L. Lagrange, 1772)