8

The closest to an attribution that I could find is by Matt Calhoun on Math SE, who claims "it was personally told to me" by "my mechanics professor (G. Horton) [who] took lectures from Pauli..." G. Horton is presumably George Horton who held a physics post-doc in Zurich in 1949-51. Pauli stayed in Zurich from 1946 until his death in 1958, so they did ...


5

I have reason to believe that's an apocryphal story, as it's been told to me by different professors at different universities with different (often local "legends" ) as the protagonists.


4

Hand-Computation of $193707721 \times 761838257287$ This is a $9$-digit number times a $12$-digit number, and thus would require $9 \times 12 = 108$ digit-by-digit products, some of which require carrying, and then adding $12$ columns each with $9$ digits (or adding $9$ columns each with $12$ digits). Assuming each of the $108$ multiplications takes $3$ to $...


3

This story of often told about G. H. Hardy. You will find it in Lion hunting & other mathematical pursuits, by Ralph P. Boas Jr. It says: “The story is told of G. H. Hardy (and of other people) that during a lecture he said ‘It is obvious… Is it obvious?’ left the room, and returned fifteen minutes later, saying ‘Yes, it's ...


1

As it happens, the same question was covered in a submission to SIGBOVIK 2019 dated 13 March 2019 and published as pages 225 to 229 of the proceedings -- four methods were examined (the author describes long multiplication as lattice multiplication but worse and thus it was not tested) with the following results: Lattice multiplication: 11 minutes Double ...


1

I first heard this story from Dr. Troy Hicks in the 1980's. I posted the story in a few different places online over the years, probably dating back to the late 90s or early 2000's. Professor Hicks was a rather conservative Christian who was very careful about his words, and was not inclined to exaggerate. When Dr. Hicks told this story, he said that he had ...


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