Find-My-Age Puzzle (True Facts): De Morgan
De Morgan turned x in the year x². When was he born? Solution on the full series page.
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Cartoon by Ben Orlin, Math with Bad Drawings. https://cartoons.mathwithbaddrawings.com/2024-01-01-find-my-age-puzzles-but-with-all-true-facts--find-my-age-puzzle-true-facts-de-morgan/ (CC BY-NC 4.0)Transcript
De Morgan: "I turned x in the year x²," he replied. In what year was De Morgan born?