On June 1 day, students let go of balloons, each balloon has more than one three, one five and six seven. There are at least several balloons in this batch.

Solution: Because "everyone has one more than three, and everyone has one more than five" means that this number is the common multiple of 3 and 5; The sentence "seven per person means six less" can also be said to be "65438+ 0 for every seven", so these three sentences are a type. Then just find the least common multiple of these three numbers. 3*5*7+ 1= 106 (piece)