There are two ropes, one is 15m long and the other is 24m long. These two ropes should be cut into small pieces of the same length, and no excess is allowed. What is the maximum length of each section in m.
有两根绳子，一根长15m，一根长24m，要把这两根绳子截成同样长的小段，不许有剩余．每段长最多多少m．
<result>3</result>