There are 15 buildings in a community, and each building has 120 households. How many households are there in this community?
一个小区共有15栋楼房，每栋有120户人家，这个小区共有多少户人家？
<gadget id="calculator">120 * 15</gadget>
<output>1_800</output>

<result>1_800</result>