The kindergarten teacher gave out candy, and a pile of candy was divided into three pieces each, leaving 1 piece. If everyone is divided into four pieces with two pieces left, everyone is divided into five pieces with three pieces left, and everyone is divided into six pieces with four pieces left, how many pieces are there in this pile of candy at least? "Three pieces each, and 1 piece. If everyone is divided into 4 pieces, there are still 2 pieces, everyone is divided into 5 pieces, there are still 3 pieces, and everyone is divided into 6 pieces and there are still 4 pieces ",that is to say, ...