6. A number is the product of 5 twos, 3 threes, 2 fives, and 1 seven. This number, of course, has many two-digit divisors. Among these two-digit divisors, what is the largest?

保留源文本的换行和格式，翻译结果如下：

6. A number is the product of 5 twos, 3 threes, 2 fives, and 1 seven. This number, of course, has many two-digit divisors. Among these two-digit divisors, what is the largest?
6. The largest divisor is 96
6.【Solution】Let the number be $\mathrm{a}$. Clearly, $99=9 \times 11$ does not meet the requirement; $98=3 \times 7 \times 7, 97$ is not a divisor of $\mathrm{a}$. However, $96=2 \times 2 \times 2 \times 2 \times 2 \times 3$ is a divisor of $\mathrm{a}$, so the largest two-digit divisor is 96.