Authorship of The Federalist Papers (Traditional Vliew)

Hamilton: numbers 1, 6-9, 11-13, 15-17, 18-20 (assisted Madison), 21-32, 34-36, 50-52 (with Madison), 54-58 (with Madison), 59-61, 62-63 (with Madison), 65-85

Madison: numbers10, 14, 18-20 (assisted by Hamilton), 37-49, 50-52 (with Hamilton), 53, 54-58 (with Hamilton), 62-63 (with Hamilton)

Jay: numbers 2-5, 64
 
But...Consider

"Finally, it was time to test the dozen disputed papers. With apologies to fans of Lin-Manuel Miranda, the results all pointed in the same direction: James Madison was almost certainly the author of all twelve."

--from https://priceonomics.com/how-statistics-solved-a-175-year-old-mystery-about/