There are 39 adults and 26 children registered for a seminar. The seating is to be arranged so each row has the same number of people. All of the people in a row must be in the same age group. How many rows of seats are needed to seat the greatest possible number of participants in each row?

20 points for the answer. this is for real , don't put random ! a rectangle has a length of 4 centimeters and a width of 7 centimeters. what is the effect on the perimeter when the dimensions are multiplied by 5? the perimeter is increased by a factor of 5. the perimeter is increased by a factor of 20. the perimeter is increased by a factor of 25. the perimeter is increased by a factor of 100.