How many times did the Virgin Mary appear at Fatima?

Our Lady appeared six times on the 13th of each month from May 13, 1917 through October 13, 1917 at which time the Miracle of the Sun took place. Our Lady appeared six times on the 13th of each month from May 13, 1917 through October 13, 1917 at which time the Miracle of the Sun took place.