There are two colored ribbons, one is 72 cm long and the other is 30 cm long. Now we need to cut them into short colored ribbons of the same length and there is no surplus. How many centimeters is the longest of each short colored ribbon?
有两根彩带，一根长72厘米，另一根长30厘米．现在要把它们剪成长度一样的短彩带且没有剩余，每根短彩带最长是多少厘米？
<gadget id="calculator">2 * 3</gadget>
<output>6</output>

<result>6</result>