When a natural number is divided by 3, the remainder is 2, when divided by 5, the remainder is 4, and when divided by 7, the remainder is 6. What is the smallest natural number?
一个自然数除以3余2，除以5余4，除以7余6，这个自然数最小是多少．
<gadget id="calculator">3 * 5 * 7</gadget>
<output>105</output>

<gadget id="calculator">105 - 1</gadget>
<output>104</output>

<result>104</result>