The greatest common factor of two numbers A and B is 25, and the least common multiple is 150. If A is 75, what is B?
甲、乙两数的最大公因数是25，最小公倍数是150，若甲是75，乙是多少．
<gadget id="calculator">150 / 75</gadget>
<output>2</output>

<gadget id="calculator">25 * 2</gadget>
<output>50</output>

<result>50</result>