The Fool's number is O. no number, but for me O is a number. The fool in the Tarot deck is as strong as all the other cards put togther. Why?Because he represents man on his spiritual quest. Not knowing where he is going, the fool is ready to discover. He is the hero of fÏairy tales who appears dim witted but is able to find the "treasure" where others have failed. The Fool has few possesions. He travels light.