How many different numbers can be drawn from 1, 2...100 such that each number is not a multiple of the other?
从1、2…100中最多可以取出多少个不同的数，使得每个数都不是另一个数的倍数？
<gadget id="calculator">100 - 51</gadget>
<output>49</output>

<gadget id="calculator">49 + 1</gadget>
<output>50</output>

<gadget id="calculator">99 - 50</gadget>
<output>49</output>

<result>50</result>