Calculate the number 791
NUMBERMANIA: Calculate the number 791 using numbers [1, 5, 5, 3, 21, 767] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.Correct answers: 2
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Edison patentsIn 1889, Thomas A. Edison was issued two U.S. patents: "Method of Winding Field Magnets," and a "Phonograph." |