There are 39 rows of pear trees in the orchard, and each row has 126 trees. How many pear trees are there in this orchard?
果园里种了39排梨树，每排有126棵，这个果园里共有多少棵梨树？
<gadget id="calculator">126 * 39</gadget>
<output>4_914</output>

<result>4_914</result>