A piece of iron wire can just be welded into a rectangular parallelepiped frame with a length of 6 cm, a width of 4 cm, and a height of 5 cm, and there is no residue. What is the length of this wire in cm?
用一根铁丝，正好能够焊接成一个长6厘米、宽4厘米，高5厘米的长方体框架，且没有剩余，这根铁丝长多少厘米．
<gadget id="calculator">6 + 4 + 5</gadget>
<output>15</output>

<gadget id="calculator">15 * 4</gadget>
<output>60</output>

<result>60</result>