I had a different name last season, but I see the board has changed...I used to be duder, but this is my first post as GopherNation, glad to be back.....
National Championships:
Michigan 7 (1901, 1902, 1923, 1933, 1947, 1948, 1997)
Minnesota 6 (1934, 1935, 1936, 1940, 1941, 1960)
Ohio State 5 (1942, 1954, 1957, 1968, 2002)
Illinois 4 (1914, 1919, 1923, 1927)
Michigan State 3 (1952, 1965, 1966)
Penn State (1982, 1986)
If you want to go by National Poll Championships, you have to go from 1936, in which case Minnesota would have 4 National Championships. Either way we are 2nd in the Big Ten for National Championships won.