In a basket of eggs, the number of 4 and 4 is 3 more than the number of 5 and 5, and the number of 7 and 7 is 6 more. What is the minimum number of eggs in this basket?
一筐鸡蛋，4个4个的数多3个，5个5个的数多4个，7个7个的数多6个，这筐鸡蛋至少多少个．
<gadget id="calculator">4 * 5 * 7</gadget>
<output>140</output>

<gadget id="calculator">140 - 1</gadget>
<output>139</output>

<result>139</result>