For one number, the remainder is 2 for three and three counts, 3 for four and four counts, and 4 for five and five counts. What is the smallest number?
一个数，三三数余2，四四数余3，五五数余4，问这个数最小是多少？
<gadget id="calculator">3 * 4 * 5</gadget>
<output>60</output>

<gadget id="calculator">60 - 1</gadget>
<output>59</output>

<result>59</result>