Leonard Hofstadter's Activity
Leonard Hofstadter added a question in New Logic/Math PuzzlesDatev PuzzleI found an intereseting riddle on a website and i don't know the answer.
Date "13-1-13" (13 January 2013) is quite special.
The date speciality is that date multiplied by month is equal to Year.
You need to find, which year of this century have maximum number of such dates ?
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