Answer:Based on the fact that it is a rectangle, the same number of people must be in each row of the marching band. 64 has factors of 1 and 64, 2 and 32, 4 and 16, and 8 and 8.
4 x 16 is the most appealing: Having four band members per row and 16 rows. 8 people across and higher (16, 32, and 64) is too big to fit on a street, 2 and 1 across will just look silly.
IcyCool - 14 * 4 = 56, not 64.
I hope this helps you