The task is to generate the correct answer for a given math problem.

[Q]: Problem: if ( 5 ^ 9 ) ( 9 ^ 5 ) = 3 ( 15 ^ x ) , what is the value of x ?
[A]: 9


[Q]: Problem: 12 men work 8 hours per day to complete the work in 10 days . to complete the same work in 8 days , working 15 hours a day , the number of men required ?
[A]: 8 days


[Q]: Problem: if n is a positive integer and the product of all integers from 1 to n , inclusive , is a multiple of 440 , what is the least possible value of n ?
[A]:
11