In Macbeth, what are the three prophecies from the witches?

In Macbeth, the witches offer three prophecies to Macbeth at the beginning of the play.  In Act 1 Scene 3, Macbeth and Banquo are returning from battle, and they meet the three witches on the road.  The witches tell Macbeth that 1) he is the Thane of Glamis, 2) he will be the Thane of Cawdor, and 3) he will be king hereafter.  Technically, however, the witches give four prophecies because they also offer Banquo a prophecy.  They tell Banquo that he will be lesser than Macbeth but greater, and that although he will not be king, he will be father to a line of kings.  Both Macbeth and Banquo leave the witches joking about the prophecies because they do not put great stock in those events coming true—but later as the prophecies start to come true, they reassess their position.