25 = 3² + 4²

ALPHA turns 25 today. 25 is a square number, being 5² = 5 × 5. It is the smallest square that is also a sum of two squares: 25 = 3² + 4². Hence it often appears in demonstrations of the Pythagorean theorem.
September 12 is also the birthday of smooth talking, sexy singing Barry White.

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