If two pieces of wood with a length of 42 decimeters and a width of 14 decimeters are sawed into several equal pieces without any residue, how many decimeters is the longest of each piece?
把两根长42分米，宽14分米的木料锯成若干相等小段而没有剩余，每段最长多少分米？
<gadget id="calculator">2 * 7</gadget>
<output>14</output>

<result>14</result>