Given that a number is the continuous product of 1 2, 2 3s, 3 5s, and 2 7s, try to find the largest two-digit factor of this number.
已知一个数是1个2，2个3，3个5，2个7的连乘积，试求这个数的最大的两位数因数．
<gadget id="calculator">2 * 49</gadget>
<output>98</output>

<result>98</result>