In a basket of apples, take 2 by 2, 3 by 3, 4 by 4, and 5 by 5. What is the minimum number of apples in this basket?
一筐苹果，2个2个拿，3个3个拿，4个4个拿，5个5个拿都正好拿完，这筐苹果最少有多少个．
<gadget id="calculator">3 * 4 * 5</gadget>
<output>60</output>

<result>60</result>