Has an AFL game ever ended 147-55?
Exactly once. On July 2, 2006, Adelaide beat Geelong 147-55, and no AFL game before or since has ended that way. When it happened it was a scorigami, the first 147-55 in league history.
That makes 147-55 the 3836th most common final score out of 6,607 that have ever occurred in AFL. One point away, 148-55 has happened never and 147-56 has happened 1 times.