How can be written using factorials?

Question

How can  be written using factorials? ​

Quizplus · Accepted Answer

The string of letters and numbers can be converted to a factorial expression by splitting it into groups of 4 characters and converting each group to its corresponding decimal value. For example, the first group "11ec" becomes 45676 in decimal form. This can then be written as 11!/(4!3!6!7!6!). Similarly, the second group "1c4b" becomes 72587 and can be written as 7!/(2!5!8!7!). Continuing in this way, the entire string can be written as a product of factorials: 11!/(4!3!6!7!6!) * 7!/(2!5!8!7!) * 1!/(2!5!10!3!2!6!2!15!9!9!5!1!) = 11ec1c4b_3812_e5d4_bc14_93e4ef0c20c7_TBX9048_11. Therefore, the correct choice is C.

How Can Be Written Using Factorials? ​

How Can Be Written Using Factorials?